document.write( "Question 84196: i need to know:
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document.write( "when the problem is log base2 X + log base2 (X + 7) = 3
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document.write( "doesnt that need to be rewritten and then solved? \n" );
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Algebra.Com's Answer #60661 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! i need to know: \n" ); document.write( "when the problem is log base2 X + log base2 (X + 7) = 3 \n" ); document.write( "doesnt that need to be rewritten and then solved? \n" ); document.write( "LOG[X(X+7)] TO BASE 2 =3 \n" ); document.write( "X(X+7)=2^3=8 \n" ); document.write( "X^2+7X-8=0 \n" ); document.write( "X^2+8X-X-8=0 \n" ); document.write( "X(X+8)-1(X+8)=0 \n" ); document.write( "(X-1)(X+8)=0 \n" ); document.write( "X=1..OR.......-8......... \n" ); document.write( "SING LOG OF NEGATIVE NUMBER DOES NOT EXIST \n" ); document.write( "X=1 IS THE ANSWER \n" ); document.write( " |