问题描述: 计算(-x^4+x^3-x+1)/(x^2-x+1) 1个回答 分类:数学 2014-10-14 问题解答: 我来补答 (-x^4+x^3-x+1)/(x^2-x+1) =-(x^4-x^3+x-1)/(x^2-x+1) =-[x(x^3+1)-(x^3+1)](x^2-x+1) =-(x-1)(x^3+1)/(x^2-x+1) =-(x-1)(x+1)(x^2-x+1)/(x^2-x+1) = -(x-1)(x+1) = (1-x)(1+x) 展开全文阅读