Toán Lớp 8: Kết quả của phép chia (x^2-2xy+y^2) cho (y-x) là A.x-y B.2 C.y-x D.-2 -

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Toán Lớp 8: Kết quả của phép chia (x^2-2xy+y^2) cho (y-x) là A.x-y B.2 C.y-x D.-2