貌似无法化简了,除非分子是x^3-x^2-x+1,你是否打错了?如果如我所说则有解.原式=(x^3-x^2-x+1)/(x-1)^2=[x(x^2-1)-(x^2-1)]/(x-1)^2=(x-1)(x^2-1)/(x-1)^2=(x-1)(x-1)(x+1)/(x-1)(x-1)=x+1如果你原题没有打错,也只能...