因式分解：(x-y)^2-8(x-y)+16

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因式分解：(x-y)^2-8(x-y)+16因式分解：(x-y)^2-8(x-y)+16因式分解：(x-y)^2-8(x-y)+16=(x-y)^2-2*4(x-y)+4^2=(x-y-4)^2(x-

因式分解：(x-y)^2-8(x-y)+16
因式分解：(x-y)^2-8(x-y)+16

因式分解：(x-y)^2-8(x-y)+16
=(x-y)^2-2*4(x-y)+4^2=(x-y-4)^2

(x-y)^2-8(x-y)+16=(x-y-4)^2

(x-y-4)^2

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