发布网友
共2个回答
热心网友
解:原式=(x^2/(x-1)-2x/(1-x))/(x/(x-1))={(x^2+2x)/(x-1)}/(x/(x-1))=(x^2+2x)/x=x+2
热心网友
[x²/(x-1)-2x/(1-x)]÷x/(x-1)=(x²+2x)/(x-1)×(x-1)/x=(x+2)/x。