化简x^m(x的m+1-x的m-x的m-1次方-1)的结果是
问题描述:
化简x^m(x的m+1-x的m-x的m-1次方-1)的结果是
答
x^m[x^(m+1)-x^m-x^(m-1)-1]
=x^m*x^(m+1)-x^m*x^m-x^m*x^(m-1)-x^m*1
=x^(2m+1)-x^2m-x^(2m-1)-x^m