因式分解(x^2-y)^2-(1-y)^2

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因式分解(x^2-y)^2-(1-y)^2因式分解(x^2-y)^2-(1-y)^2因式分解(x^2-y)^2-(1-y)^2(x²-y)²-(1-y)²＝(x²

因式分解(x^2-y)^2-(1-y)^2
因式分解(x^2-y)^2-(1-y)^2

因式分解(x^2-y)^2-(1-y)^2
(x²-y)²-(1-y)²
＝(x²-y+1-y)(x²-y-1+y)
＝(x²-2y+1)(x²-1)
＝(x²-2y+1)(x-1)(x+1).

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