(x-y)².(x-y)³.(y-x)².(y-x)³ 怎么算,
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![(x-y)².(x-y)³.(y-x)².(y-x)³ 怎么算,](/uploads/image/z/1064316-12-6.jpg?t=%EF%BC%88x-y%29%26%23178%3B.%28x-y%29%26%23179%3B.%EF%BC%88y-x%29%26%23178%3B.%EF%BC%88y-x%EF%BC%89%26%23179%3B+%E6%80%8E%E4%B9%88%E7%AE%97%2C)
(x-y)².(x-y)³.(y-x)².(y-x)³ 怎么算,
(x-y)².(x-y)³.(y-x)².(y-x)³ 怎么算,
(x-y)².(x-y)³.(y-x)².(y-x)³ 怎么算,
(x-y)².(x-y)³.(y-x)².(y-x)³
=-(x-y)².(x-y)³.(x-y)².(x-y)³
=-2(x-y)^(2+3+2+3)
=-2(x-y)^10