document.write( "Question 361187: Please factorise the following by using the difference of two squares method\r
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\n" ); document.write( "\n" ); document.write( "(2x+y) squared -4\r
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Algebra.Com's Answer #257630 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
The difference of squares is always the sum times the difference.
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\n" ); document.write( "\"a%5E2+-+b%5E2+=+%28a%2Bb%29%2A%28a-b%29\"
\n" ); document.write( "\"x%5E2y%5E2+-+w%5E2z%5E2+=+%28xy%2Bwz%29%2A%28xy-wz%29\"
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