(x-y)³+9(x-y)-6(x-y)²
(x-y)³+9(x-y)-6(x-y)²
(x-y)³(y-x)(y-x)²+(x-y)^6
6(x-y)³+15(y-x)²-9(y-x)³因式分解
(x-y)³(x-y)²(y-x)等于多少
约分下列分式(x-y)/(y-x)³(x²-9)/(6-2x)(x²-1)/(x-x
(x+y)²+x+y-6因式分解
{(x,y) |x|+|y|
x>y?x:y
(三分之二x√9x +6x√x/y)+(y√y/x -x²√x/1)
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
因式分解:x²(x-y)+(y-x)
合并同类项:-6x²y-x+5x²y-2x+x³y+3x