-2(x-y)^2n-4(y-x)^2n+1 (n为正整数)因式分解

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-2(x-y)^2n-4(y-x)^2n+1 (n为正整数)因式分解
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-2(x-y)^2n-4(y-x)^2n+1 (n为正整数)因式分解
-2(x-y)^2n-4(y-x)^2n+1 (n为正整数)因式分解

-2(x-y)^2n-4(y-x)^2n+1 (n为正整数)因式分解
-2(x-y)^2n-4(y-x)^(2n+1)
=4(x-y)^(2n-1)-2(x-y)^2n
=2(x-y)^2n*(2x-2y-1)
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