(x+y)^2-(x+y)^3 .
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(x+y)^2-(x+y)^3 .
(x+y)^2-(x+y)^3
(x-y)^2-(x-y)^3
(x+y)^2-(x+y)^3
(x-y)^2-(x-y)^3
![(x+y)^2-(x+y)^3 .](/uploads/image/z/14982123-3-3.jpg?t=%28x%2By%29%5E2-%28x%2By%29%5E3+.)
(x+y)^2-(x+y)^3
=(1-x-y)(x+y)^2
(x-y)^2-(x-y)^3
==(1-x+y)(x-y)^2
=(1-x-y)(x+y)^2
(x-y)^2-(x-y)^3
==(1-x+y)(x-y)^2
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
【x-3y][x+y]-[x-2y][x +2y]-[x-y
有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-
计算(x+y)(x+y)^2(-x-y)^3
数学(x-y)^5*(y-x)^3*(x-y)^2
已知X-Y/X+Y=3,求代数式2(x-y)/X+Y-3X+Y/X+Y
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(x-y)^2-(x-y)^3因式分解
计算:(-x-2y) * (3x-y)
(x+y)^2-3(x-y)因式分解
(2X-3y)-(5x-y)