document.write( "Question 630913: Use the \"difference of square\" rule to factor the following expression:
\n" ); document.write( "9x^4-25y^2 \n" ); document.write( "

Algebra.Com's Answer #397206 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+9x%5E4-25y%5E2+\"$
\n" ); document.write( " $\"+%28+3x%5E2+%29%5E2+-+%28+5y+%29%5E2+\"$
\n" ); document.write( "-----------
\n" ); document.write( "The rule is:
\n" ); document.write( " $\"+a%5E2+-+b%5E2+=+%28+a+-+b+%29%2A%28+a+%2B+b+%29+\"$
\n" ); document.write( "-----------
\n" ); document.write( " $\"+%28+3x%5E2+%29%5E2+-+%28+5y+%29%5E2++=+%28+3x%5E2+-+5y+%29%2A%28+3x%5E2+%2B+5y+%29+\"$ \n" ); document.write( "

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