(x²-x)/(x-1)+1/(x-1)=a+1/(a-1)
x+1/(x-1)=a+1/(a-1)
两边减去1
(x-1)+1/(x-1)=(a-1)+1/(a-1)
这样吧x-1和a-1看做整体即可����(x²-x)/(x-1)+1/(x-1)��һ������ô�ó����ģ����з�������ν�����ģ�(a+b/c=a/c+b/ca+1/(a-1)����ô�ó����أ�Ϊʲô���߶�Ҫ��һ��分母是a-1所以a也要变成a-1行了，采纳吧