document.write( "Question 634200: factor and solve x^2-x-72=0 \n" ); document.write( "
Algebra.Com's Answer #399425 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
find factors of -72 which add up to -1
\n" ); document.write( "-9 and 8
\n" ); document.write( "(x-9)*(x+8)=0
\n" ); document.write( "x=9 x=-8
\n" ); document.write( "
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