求下列分式的最简公分母,最好能写过程通分完1、x^2-3x分之一 x^2-9分之二2、2m-2n分之a m^2-mn分之b m^2-2mn+n^2分之c
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求下列分式的最简公分母,最好能写过程通分完1、x^2-3x分之一 x^2-9分之二2、2m-2n分之a m^2-mn分之b m^2-2mn+n^2分之c
求下列分式的最简公分母,最好能写过程通分完
1、x^2-3x分之一 x^2-9分之二
2、2m-2n分之a m^2-mn分之b m^2-2mn+n^2分之c
求下列分式的最简公分母,最好能写过程通分完1、x^2-3x分之一 x^2-9分之二2、2m-2n分之a m^2-mn分之b m^2-2mn+n^2分之c
(a - b)(b - c)(a - c) (x - 1)(x + 1)(x - 22x(x-y);把第二个分解因式是2(x-y),所以最简公分母就是2x(x-y)
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