因式分解:(x+y)(x-y)+4(y-1)

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因式分解:(x+y)(x-y)+4(y-1)因式分解:(x+y)(x-y)+4(y-1)因式分解:(x+y)(x-y)+4(y-1)全部展开收起好难

因式分解:(x+y)(x-y)+4(y-1)
因式分解:(x+y)(x-y)+4(y-1)

因式分解:(x+y)(x-y)+4(y-1)

收起

好难