eve改单脚本:x^3+y^3=1000且x^2y-xy^2=-496,求(x^8-y^8)+(4xy^2-2x^2y)-2(xy^2-y^2)
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x^3+y^3=1000且x^2y-xy^2=-496,求(x^8-y^8)+(4xy^2-2x^2y)-2(xy^2-y^2)
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