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计算:3xy[2xy-x(y-2)+x]
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计算:(-3xy)^3*(-4/3x^2y)
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麻烦你们团队了:计算:1、(6xy^2-12x^3y^4+2x^2y^2)/(-2xy^2) 2、8(x-y)^4(x+
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