1) (x+y)^2-(x+y)^3 2) (x-y)^2-(x-y)^3 3)(x-y)^2-(y-x)^3 因式分解因式分解 1) (x+y)^2-(x+y)^3 2) (x-y)^2-(x-y)^3 3) (x-y)^2-(y-x)^3 4) 2(x-y)-3(y-x)^25) 4ab(a+b)^2-6a^2b(a+b) 6) (x+y)^2(x-y)+(x+y)(x-y)^2 7) 2a(a-3)^2-6a^2(3-a)+8a(a-3)8) 24xy^2z^2(x+y-z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)

问题描述:

1) (x+y)^2-(x+y)^3 2) (x-y)^2-(x-y)^3 3)(x-y)^2-(y-x)^3 因式分解
因式分解 1) (x+y)^2-(x+y)^3 2) (x-y)^2-(x-y)^3 3) (x-y)^2-(y-x)^3 4) 2(x-y)-3(y-x)^2
5) 4ab(a+b)^2-6a^2b(a+b) 6) (x+y)^2(x-y)+(x+y)(x-y)^2 7) 2a(a-3)^2-6a^2(3-a)+8a(a-3)
8) 24xy^2z^2(x+y-z)-32xyz(z-x-y)^2+8xyz^3(z-x-y)

1) (x+y)^2-(x+y)^3 =(x+y)²[1-(x+y)]=(x+y)²(1-x-y)2) (x-y)^2-(x-y)^3 =(x-y)²(1-x+y)3) (x-y)^2-(y-x)^3 =(x-y)²+(x-y)³=(x-y)²(1+x-y)4) 2(x-y)-3(y-x)^2=2(x-y)-3(x-y)...