(x+y)^2-4(x+y)因式分解 快.

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(x+y)^2-4(x+y)因式分解快.(x+y)^2-4(x+y)因式分解快.(x+y)^2-4(x+y)因式分解快.(x+y)^2-4(x+y)=(x+y)[(x+y)-4]=(x+y)(x+y-

(x+y)^2-4(x+y)因式分解 快.
(x+y)^2-4(x+y)因式分解 快.

(x+y)^2-4(x+y)因式分解 快.
(x+y)^2-4(x+y)
=(x+y)[(x+y)-4]
=(x+y)(x+y-4)

=(x+y)(x+y-4)

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