(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)

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(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)(x/(x^2+x))除以((x

(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)
(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)

(x/(x^2+x))除以((x^2+x-2)/x^2-1)+(x+1)/(x-1)
(x/(x^2+x))除以
((x^2+x-2)/x^2-1)+(x+1)/(x-1)
答:
((-1 + x) x^2) / ((1 + x) (2 - 3 x + 2 x^2 + x^3))