document.write( "Question 84593: Is the following binomial a difference of squares? 9a^2-8b^2 \n" ); document.write( "

Algebra.Com's Answer #60939 by Earlsdon(6294) $\"\"$ $\"About$

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Is the binomial a difference of squares?
\n" ); document.write( " $\"9a%5E2-8b%5E2\"$
\n" ); document.write( "Look at the first term: $\"9a%5E2\"$ .
\n" ); document.write( "Take the square root: $\"sqrt%289a%5E2%29+=+3a\"$ the first term is a perfect square.
\n" ); document.write( "Now look at the second term: $\"8b%5E2\"$ .
\n" ); document.write( "Take the square root: $\"sqrt%288b%5E2%29+=+sqrt%288%29%2Ab\"$ the second term is not a perfect square, so the binomial $\"9a%5E2-8b%5E2\"$ is not the difference of squares. \n" ); document.write( "

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