Question

化简（‐x)^3(‐y)^2‐(‐x^3 y^2)

Answer 1

（‐x)^3(‐y)^2‐(‐x^3 y^2)

=-x³y²+x³y²

=0

(a‐b)^3(b‐a)^5

=-(a-b)^3(a-b)^5

=-(a-b)^8