document.write( "Question 471777: the difference between 2x^+4xy-3 and x2^-2xy-4 is
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Algebra.Com's Answer #323528 by Tatiana_Stebko(1539)\"\" \"About 
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\"%282x%5E2%2B4xy-3%29-%28x%5E2-2xy-4%29=2x%5E2%2B4xy-3-x%5E2%2B2xy%2B4=x%5E2%2B6xy%2B1\"
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