Question

初二关于整式的乘除的几道题.1.(-x)^3(-y)^2+(-x^3y^2)2.（m-n)^2(n-m)^3(n-m)^

Answer 1

解1题原式=(-x)³(-y)²+(-x³y²)=-x³×y²-x³y²=-x³y²-x³y²=-2x³y²解2题原式=(m-n)²(n-m)³(n-m)^4=(n-m)²×(n-m)³×(n-m)...