（x^2y^3－x^3y^2)·(x^2－y^2)要过程

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（x^2y^3－x^3y^2)·(x^2－y^2)要过程（x^2y^3－x^3y^2)·(x^2－y^2)要过程（x^2y^3－x^3y^2)·(x^2－y^2)要过程(x²y³-

（x^2y^3－x^3y^2)·(x^2－y^2)要过程
（x^2y^3－x^3y^2)·(x^2－y^2)要过程

（x^2y^3－x^3y^2)·(x^2－y^2)要过程
(x²y³-x³y²)·(x²-y²)
=x²y²(y-x)(x+y)(x-y)
=-x²y²(x+y)(x-y)²
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x(x-y)2-(y-x)3 [2/3x-2/x+y(x+y/3x-x-y)]/x-y/x 化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x 计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x 计算：x+2y/x-y+2x/y-x-3y/x-y 化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方 [(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y) 2X(2X-3Y)-3Y(X+Y) (-2x y)^2-(3y-x)(-x-3y) （x+2y)^2-(x+y)(3x-y) 计算(x+y)(x+y)^2(-x-y)^3 化简:5(x-y)+2(x+y)-3(x-y) 3x(x-y)+2y(x-y) 计算化简3(x-y)-7(x--y)+2(y-x) 因式分解:3x(x-y)+2y(y-x) (x-y)^3×（x-y)^2×(y-x) 分解因式：3x(y-x)-2y(x-y)