Упростите a^2b/a^2-2ab+b^2*a-b/a

Question

Упростите a^2b/a^2-2ab+b^2*a-b/a

Answer 1

A²b/(a²-2ab+b²)*(a-b)/a=a²b/(a-b)² *(a-b)/a
=a³b*/(a-b)