document.write( "Question 73440: please factor by grouping
\n" ); document.write( "x-y-x^2+2xy-y2
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Algebra.Com's Answer #52578 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
please factor by grouping
\n" ); document.write( "x-y-x^2+2xy-y2\r
\n" ); document.write( "\n" ); document.write( "=(x-y)-(x^2-2xy+y^2\r
\n" ); document.write( "\n" ); document.write( "=(x-y)-(x-y)^2\r
\n" ); document.write( "\n" ); document.write( "=(x-y)[1-(x-y)]\r
\n" ); document.write( "\n" ); document.write( "=(x-y)(1-x+y)\r
\n" ); document.write( "\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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