化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=2012,y=-2011
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化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=2012,y=-2011化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=
化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=2012,y=-2011
化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=2012,y=-2011
化简(2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2,x=2012,y=-2011
（2x^3y^3+x^4y^2+x^2y^4)^2-x^2y^2(x+y)^2
=x^2y^2（x^2+2xy+y^2)-x^2y^2(x+y)^2
=x^2y^2(x+y)^2-x^2y^2(x+y)^2
=0
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