5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多
5(x+y)²-3(x+y)³+(y+x)²-8(y+x)³ 怎么样求解这样的多
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
(x-y)³+9(x-y)-6(x-y)²
(x-y)³(x-y)²(y-x)等于多少
合并同类项:-6x²y-x+5x²y-2x+x³y+3x
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
四分之一(x+y)²-3(x-y)³+二分之一(x+y)²-5(x-y)³
计算:(x-y)的5次方(x-y)²(x-y)³
因式分解x的5次方y-x³y+2x²y-xy
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
5x[x-3y]²+2y[3y-x]³因式分解,