Ответ: xz²-yz²-yz+xz-x+y=z²(x-y)+z(x-y)-(x-y)=(x-y)(z²+z-1)
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Ответ: xz²-yz²-yz+xz-x+y=z²(x-y)+z(x-y)-(x-y)=(x-y)(z²+z-1)