document.write( "Question 519584: Can you please check this for me. It just does not seem right.
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document.write( "solve for x
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document.write( "4x(x-8)-5x(x-7)=-4
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document.write( "my answer is x=-1,4
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document.write( "Thank you \n" );
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Algebra.Com's Answer #345687 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! 4x(x-8)-5x(x-7)=-4 \n" ); document.write( "4x^2-32x-5x^2+35x=-4 \n" ); document.write( "-x^2-32x+35x=-4 \n" ); document.write( "-x^2+3x=-4 \n" ); document.write( "-x^2+3x+4=0 \n" ); document.write( "x^2-3x-4=0 \n" ); document.write( "(x-4)(x+1) = 0 \n" ); document.write( "x = {-1, 5} \n" ); document.write( ". \n" ); document.write( "So, yes, you're right! \n" ); document.write( " \n" ); document.write( " |