document.write( "Question 623380: (x-9) (x-9)= x2-81
\n" ); document.write( "-how did you find the factors of x2-81?
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Algebra.Com's Answer #392063 by Alan3354(69443)\"\" \"About 
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(x-9) (x-9)= x2-81
\n" ); document.write( "-how did you find the factors of x2-81?
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\n" ); document.write( "Use ^ for exponents, shifted 6.
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\n" ); document.write( "(x-9)*(x-9) is not x^2-81
\n" ); document.write( "\"%28x-9%29%2A%28x-9%29+=+x%5E2+-+18x+%2B+81\"
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\n" ); document.write( "\"x%5E2-81+=+%28x-9%29%2A%28x%2B9%29\"
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