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数学
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xy-yz+xz-y²因式分解
人气:399 ℃ 时间:2019-12-10 02:53:00
解答
解
xy-yz+xz-y^2
=(xy-y^2)+(zx-yz)
=y(x-y)+z(x-y)
=(z+y)(x-y)
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