document.write( "Question 97426This question is from textbook College Algebra
\n" ); document.write( ": The problem is -4x^2+8x=0. So far I've done -4x^2+8x+7=0, 4x^2-8x-7=0 then I squared half of the coefficient of x and added to both sides and got 4x^2-8x+16=9 but I can't figure out how to get a perfect square. Did I do something wrong in the first steps? \n" ); document.write( "
Algebra.Com's Answer #70893 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
-4x^2+8x=0
\n" ); document.write( "Factor:
\n" ); document.write( "= -4x(x-2)=0
\n" ); document.write( "-4x=0 or x-2=0
\n" ); document.write( "x = 0 or x=2
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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