document.write( "Question 31334: the square of a certain number minus nine times the number is 36. find the number. \n" ); document.write( "
Algebra.Com's Answer #18026 by stanbon(75887)\"\" \"About 
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Let the number be \"x\".
\n" ); document.write( "Then x^2-9x=36
\n" ); document.write( "x^2-9x-36=0
\n" ); document.write( "(x-12)(x+3)=0
\n" ); document.write( "x=12 or x=-3
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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