a平方(x-y)立方-b(y-x)平方 因式分解
问题描述:
a平方(x-y)立方-b(y-x)平方 因式分解
答
a²(x-y)³-[b(y-x)]²
=a^2(x-y)^3-b^2(x-y)^2
=(x-y)^2(a^2(x-y)-b^2)
答
a平方(x-y)立方-b(y-x)平方
=a^2(x-y)^3-b(x-y)^2
=(x-y)^2(a^2(x-y)-b)
答
a平方(x-y)立方-b(y-x)平方
=a^2(x-y)^3-b(x-y)^2
=(x-y)^2[a^2(x-y)-b]
=(x-y)^2(a^2x-a^2y-b)