(x-y)²×(x²+y²)²×(x+y)²怎么算

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(x-y)²×(x²+y²)²×(x+y)²怎么算

(x-y)²×(x²+y²)²×(x+y)²怎么算
(x-y)²×(x²+y²)²×(x+y)²怎么算

(x-y)²×(x²+y²)²×(x+y)²怎么算