document.write( "Question 697114: 9(a+1)^2-4(a-1)^2 \n" ); document.write( "

Algebra.Com's Answer #429718 by jim_thompson5910(35256) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"9%28a%2B1%29%5E2-4%28a-1%29%5E2\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"9%28a%5E2%2B2a%2B1%29-4%28a%5E2-2a%2B1%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"9a%5E2%2B18a%2B9-4a%5E2%2B8a-4\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"5a%5E2%2B26a%2B5\"$ \r
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\n" ); document.write( "\n" ); document.write( "So $\"9%28a%2B1%29%5E2-4%28a-1%29%5E2\"$ simplifies to $\"5a%5E2%2B26a%2B5\"$ \n" ); document.write( "

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