分式约分x/x^2y-y÷x^2y/x^2+x.（xy-x^2)乘xy/x-y
问题描述：
分式约分x/x^2y-y÷x^2y/x^2+x.（xy-x^2)乘xy/x-y
答
x/x^2y-y÷x^2y/x^2+x
=(x-y)/(x²y)×(x²+x)
=(x-y)(x+1)/(xy);
（xy-x^2)乘xy/x-y
=x(y-x)xy/(x-y)
=-x²y;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,