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	<title>Comentários sobre: Resolva a seguinte questão de logarítimos na base 2</title>
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		<title>Por: ands6</title>
		<link>https://www.professoronline.net/resolva-a-seguinte-questao-de-logaritimos-na-base-2/comment-page-1/#comment-996</link>
		<dc:creator><![CDATA[ands6]]></dc:creator>
		<pubDate>Tue, 14 May 2013 17:35:39 +0000</pubDate>
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		<description><![CDATA[12 + log²x - 7log²x = 0
12 - 6log²x = 0
12 = 6log²x 
(simplifique por 6)
2 = log²x
(aplique a propriedade fundamental do logaritmo)
x=2²= 4

x=4
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		<content:encoded><![CDATA[<p>12 + log²x &#8211; 7log²x = 0<br />
12 &#8211; 6log²x = 0<br />
12 = 6log²x<br />
(simplifique por 6)<br />
2 = log²x<br />
(aplique a propriedade fundamental do logaritmo)<br />
x=2²= 4</p>
<p>x=4</p>
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