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分解因式:x2-xy+xz-yz=______.
人气:407 ℃ 时间:2020-05-18 01:03:11
解答
x2-xy+xz-yz,
=(x2-xy)+(xz-yz),
=x(x-y)+z(x-y),
=(x-y)(x+z).
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