x/(x-1)^2,2/1-x^3 分式通分

问题描述:

x/(x-1)^2,2/1-x^3 分式通分

x/(x-1)^2=x(x²+x+1)/(x-1)(x³-1)=(x³+x²+x)/(x-1)(x³-1)
2/1-x^3=2(1-x)/(x-1)(x³-1)=(2-2x)/(x-1)(x³-1)又是你,速度好快啊,