document.write( "Question 657831: Solve for x:
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document.write( "log base 2(x^2+7x)=3
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Algebra.Com's Answer #410027 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Solve for x: \n" ); document.write( "log base 2(x^2+7x)=3 \n" ); document.write( "log2(8)=3 \n" ); document.write( "log2(x^2+7x)=log2(8) \n" ); document.write( "x^2+7x=8 \n" ); document.write( "x^2+7x-8=0 \n" ); document.write( "(x+8)(x-1)=0 \n" ); document.write( "x=-8 \n" ); document.write( "or \n" ); document.write( "x=1 \n" ); document.write( " |