document.write( "Question 724455: Factor. Check your answering by multiplying
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Algebra.Com's Answer #443752 by MathLover1(20849)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"%284x%29%5E2-%287y%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"%284x-7y%29%284x%2B7y%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"%284x-7y%29%284x%2B7y%29\"\r
\n" ); document.write( "\n" ); document.write( "\"4x%2A4x%2B4x%2A7y-7y%2A4x7y%2A7y\"\r
\n" ); document.write( "\n" ); document.write( "\"16x%5E2%2B28xy-28yx-49y%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"16x%5E2%2Bcross%2828xy%29-cross%2828yx%29-49y%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"16x%5E2-49y%5E2\"
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