[2(x-y)²(x+y)]³

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[2(x-y)²(x+y)]³[2(x-y)²(x+y)]³[2(x-y)²(x+y)]³ 

[2(x-y)²(x+y)]³
[2(x-y)²(x+y)]³

[2(x-y)²(x+y)]³