document.write( "Question 490666: Factor the expression 16a^2-72ab+81b^2 into a product of binomials. \n" ); document.write( "
Algebra.Com's Answer #334222 by Gogonati(855)\"\" \"About 
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\"16a%5E2-72ab%2B81b%5E2=%284a%29%5E2-2%2A4a%2A9b%2B%289b%29%5E2=%284a-9b%29%5E2\". \n" ); document.write( "
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