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	<id>https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=E%3A15345</id>
	<title>E:15345 - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://wiki.universitas.ro/index.php?action=history&amp;feed=atom&amp;title=E%3A15345"/>
	<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:15345&amp;action=history"/>
	<updated>2026-05-01T16:05:20Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.42.1</generator>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10719&amp;oldid=prev</id>
		<title>Andrei.Horvat at 15:37, 20 August 2025</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10719&amp;oldid=prev"/>
		<updated>2025-08-20T15:37:40Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:37, 20 August 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot;&gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Soluții naturale obținem numai pentru &amp;lt;math&amp;gt; x^y + 1 = 9 &amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt; x^y + 1 = 65 &amp;lt;/math&amp;gt;.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Soluții naturale obținem numai pentru &amp;lt;math&amp;gt; x^y + 1 = 9 &amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt; x^y + 1 = 65 &amp;lt;/math&amp;gt;.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Găsim &amp;lt;math&amp;gt; x = 2, y = 3, z = 6 &amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt; x = 2, y = 6, z = 3 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Găsim &amp;lt;math&amp;gt; x = 2, y = 3, z = 6 &amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt; x = 2, y = 6, z = 3 &amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;În concluzie, am obținut &amp;lt;math&amp;gt;\overline{xyz} = 236&amp;lt;/math&amp;gt;, respectiv &amp;lt;math&amp;gt;\overline{xyz} = 263&amp;lt;/math&amp;gt;.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10718&amp;oldid=prev</id>
		<title>Andrei.Horvat at 15:35, 20 August 2025</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10718&amp;oldid=prev"/>
		<updated>2025-08-20T15:35:52Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:35, 20 August 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ecuația se scrie în mod echivalent&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ecuația se scrie în mod echivalent&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;math display=&quot;block&quot;&amp;gt; x^y \cdot x^z + x^y + x^z = 584,&amp;lt;/math&amp;gt;ceea ce conduce la  &amp;lt;math display=&quot;block&quot;&amp;gt;x^y \cdot x^z + x^y + x^z= 585.&amp;lt;/math&amp;gt;De aici avem &amp;lt;math&amp;gt;x^y \cdot(x^z+1) + (x^z + 1) = 585&amp;lt;/math&amp;gt;, de unde rezultă &amp;lt;math display=&quot;block&quot;&amp;gt;(x^y + 1) \cdot (x^z + 1) = 585.&amp;lt;/math&amp;gt;Deoarece &amp;lt;math&amp;gt;585&amp;lt;/math&amp;gt; este număr impar deducem că cele două paranteze sunt numere impare; mai mult &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; este număr par. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt; x^y &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\cdot &lt;/del&gt;x^z + x^y + x^z = &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;584&lt;/del&gt;&amp;lt;/math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;,&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cum &amp;lt;math&amp;gt; 585 = 3 \cdot 195 = 5 \cdot 117 = 9 \cdot 65 = 13 \cdot 45 = 15 \cdot 39&amp;lt;/math&amp;gt; putem avea &lt;/ins&gt;&amp;lt;math&amp;gt;x^y &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ 1 = 3&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; &lt;/ins&gt;x^z + &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;1 = 195; &lt;/ins&gt;x^y + &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;1 = 5 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; &lt;/ins&gt;x^z &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ 1 &lt;/ins&gt;= &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;117; x^y + 1 = 9 &lt;/ins&gt;&amp;lt;/math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;și &lt;/ins&gt;&amp;lt;math&amp;gt; &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;x^z + 1 = 65; &lt;/ins&gt;x^y &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ 1 = 13 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; &lt;/ins&gt;x^z + &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;1 = 45; &lt;/ins&gt;x^y + &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;1 = 15 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; &lt;/ins&gt;x^z &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;+ 1 &lt;/ins&gt;= &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;39 &lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;, sau invers. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;sau &lt;/del&gt;&amp;lt;math&amp;gt;x^y &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\cdot &lt;/del&gt;x^z + x^y + x^z= &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;585.&lt;/del&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;De aici&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Soluții naturale obținem numai pentru &lt;/ins&gt;&amp;lt;math&amp;gt; x^y + 1 = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;9 &lt;/ins&gt;&amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt; x^y + 1 = &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;65 &lt;/ins&gt;&amp;lt;/math&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;. &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt;x^y &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;\cdot(x^z&lt;/del&gt;+1&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) + (x^z + 1) &lt;/del&gt;= &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;585&lt;/del&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;sau &amp;lt;math&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;(&lt;/del&gt;x^y + 1&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;) \cdot (x^z + 1) &lt;/del&gt;= &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;585.&lt;/del&gt;&amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Deoarece &amp;lt;math&amp;gt;585&amp;lt;/math&amp;gt; este număr impar deducem că cele două paranteze sunt numere impare; mai mult &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; este număr par. Cum &amp;lt;math&amp;gt; 585 = 3 \cdot 195 = 5 \cdot 117 = 9 \cdot 65 = 13 \cdot 45 = 15 \cdot 39&amp;lt;/math&amp;gt; putem avea &amp;lt;math&amp;gt;x^y + 1 = 3&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 195; x^y + 1 = 5 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 117; x^y + 1 = 9 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 65; x^y + 1 = 13 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 45; x^y + 1 = 15 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 39 &amp;lt;/math&amp;gt;, sau invers. Soluții naturale obținem numai pentru &amp;lt;math&amp;gt; x^y + 1 = 9 &amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt; x^y + 1 = 65 &amp;lt;/math&amp;gt;. &lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Găsim &amp;lt;math&amp;gt; x = 2, y = 3, z = 6 &amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt; x = 2, y = 6, z = 3 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Găsim &amp;lt;math&amp;gt; x = 2, y = 3, z = 6 &amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt; x = 2, y = 6, z = 3 &amp;lt;/math&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10717&amp;oldid=prev</id>
		<title>Andrei.Horvat at 15:33, 20 August 2025</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10717&amp;oldid=prev"/>
		<updated>2025-08-20T15:33:21Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:33, 20 August 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l5&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ecuația se scrie&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;:&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Ecuația se scrie &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;în mod echivalent&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt; x^y \cdot x^z + x^y + x^z = 584&amp;lt;/math&amp;gt;,&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;math&amp;gt; x^y \cdot x^z + x^y + x^z = 584&amp;lt;/math&amp;gt;,&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Andrei.Horvat</name></author>
	</entry>
	<entry>
		<id>https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10553&amp;oldid=prev</id>
		<title>Tita Marian: Created page with &quot;&#039;&#039;&#039;E:15345 (Călin Dănuț Hossu, Baia Mare)&#039;&#039;&#039;  &#039;&#039;Determinați numerele &#039;&#039;&lt;math&gt;\overline{xyz}&lt;/math&gt; &#039;&#039;, scrise în baza &lt;math&gt;10&lt;/math&gt;, știind că &lt;math&gt;x^{y+z} + x^y + x^z - 584 = 0&lt;/math&gt;.&#039;&#039;  &#039;&#039;&#039;Soluție&#039;&#039;&#039;  Ecuația se scrie:  &lt;math&gt; x^y \cdot x^z + x^y + x^z = 584&lt;/math&gt;, sau &lt;math&gt;x^y \cdot x^z + x^y + x^z= 585.&lt;/math&gt;  De aici &lt;math&gt;x^y \cdot(x^z+1) + (x^z + 1) = 585&lt;/math&gt; sau &lt;math&gt;(x^y + 1) \cdot (x^z + 1) = 585.&lt;/math&gt;  Deoarece &lt;math&gt;585&lt;/math&gt; este numă...&quot;</title>
		<link rel="alternate" type="text/html" href="https://wiki.universitas.ro/index.php?title=E:15345&amp;diff=10553&amp;oldid=prev"/>
		<updated>2025-01-11T20:54:14Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;&amp;#039;E:15345 (Călin Dănuț Hossu, Baia Mare)&amp;#039;&amp;#039;&amp;#039;  &amp;#039;&amp;#039;Determinați numerele &amp;#039;&amp;#039;&amp;lt;math&amp;gt;\overline{xyz}&amp;lt;/math&amp;gt; &amp;#039;&amp;#039;, scrise în baza &amp;lt;math&amp;gt;10&amp;lt;/math&amp;gt;, știind că &amp;lt;math&amp;gt;x^{y+z} + x^y + x^z - 584 = 0&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;  &amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;  Ecuația se scrie:  &amp;lt;math&amp;gt; x^y \cdot x^z + x^y + x^z = 584&amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt;x^y \cdot x^z + x^y + x^z= 585.&amp;lt;/math&amp;gt;  De aici &amp;lt;math&amp;gt;x^y \cdot(x^z+1) + (x^z + 1) = 585&amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt;(x^y + 1) \cdot (x^z + 1) = 585.&amp;lt;/math&amp;gt;  Deoarece &amp;lt;math&amp;gt;585&amp;lt;/math&amp;gt; este numă...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;E:15345 (Călin Dănuț Hossu, Baia Mare)&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;Determinați numerele &amp;#039;&amp;#039;&amp;lt;math&amp;gt;\overline{xyz}&amp;lt;/math&amp;gt; &amp;#039;&amp;#039;, scrise în baza &amp;lt;math&amp;gt;10&amp;lt;/math&amp;gt;, știind că &amp;lt;math&amp;gt;x^{y+z} + x^y + x^z - 584 = 0&amp;lt;/math&amp;gt;.&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Soluție&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
&lt;br /&gt;
Ecuația se scrie:&lt;br /&gt;
&lt;br /&gt;
&amp;lt;math&amp;gt; x^y \cdot x^z + x^y + x^z = 584&amp;lt;/math&amp;gt;,&lt;br /&gt;
sau &amp;lt;math&amp;gt;x^y \cdot x^z + x^y + x^z= 585.&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
De aici&lt;br /&gt;
&amp;lt;math&amp;gt;x^y \cdot(x^z+1) + (x^z + 1) = 585&amp;lt;/math&amp;gt;&lt;br /&gt;
sau &amp;lt;math&amp;gt;(x^y + 1) \cdot (x^z + 1) = 585.&amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Deoarece &amp;lt;math&amp;gt;585&amp;lt;/math&amp;gt; este număr impar deducem că cele două paranteze sunt numere impare; mai mult &amp;lt;math&amp;gt;x&amp;lt;/math&amp;gt; este număr par. Cum &amp;lt;math&amp;gt; 585 = 3 \cdot 195 = 5 \cdot 117 = 9 \cdot 65 = 13 \cdot 45 = 15 \cdot 39&amp;lt;/math&amp;gt; putem avea &amp;lt;math&amp;gt;x^y + 1 = 3&amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 195; x^y + 1 = 5 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 117; x^y + 1 = 9 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 65; x^y + 1 = 13 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 45; x^y + 1 = 15 &amp;lt;/math&amp;gt; și &amp;lt;math&amp;gt; x^z + 1 = 39 &amp;lt;/math&amp;gt;, sau invers. Soluții naturale obținem numai pentru &amp;lt;math&amp;gt; x^y + 1 = 9 &amp;lt;/math&amp;gt; sau &amp;lt;math&amp;gt; x^y + 1 = 65 &amp;lt;/math&amp;gt;. &lt;br /&gt;
Găsim &amp;lt;math&amp;gt; x = 2, y = 3, z = 6 &amp;lt;/math&amp;gt;, sau &amp;lt;math&amp;gt; x = 2, y = 6, z = 3 &amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Tita Marian</name></author>
	</entry>
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