Toán Lớp 8: Rút gọn p/s sau: -2x _______ -x+1

(-2x)/(-x+1) text{(ĐK: x # -1)} = (-2x)/ ( - (x-1) ) = (2x)/(x-1)

$ frac{-2x}{-x + 1}$ Đkxđ: x $ neq$ 1 = $ frac{-2x}{-(x - 1)}$ = $ frac{2x}{x - 1}$ Chúc bạn học tốt

Toán Lớp 8: Rút gọn p/s sau: -2x ______

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