(-4x⁶-20x⁴y²-12x³y+6x³y²)÷【-
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
(x-y)³+9(x-y)-6(x-y)²
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²
计算6x³y^6÷(1/2)y³÷(-3x²y)-(12x^4y^6-8x²y^
(x-y)³(y-x)(y-x)²+(x-y)^6
(x-y)³(x-y)²(y-x)等于多少
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
分解因式计算6x³y(x-y)³-4xy³(y-x)²
分解因式:-12x^4y+8x²y²-4x²y³
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
化简x-y分之x + x³-2x²y+xy²分之y³ ÷ y²-x
[x(x²y²-xy)-y(x²-x³y)]÷3x²y