(0.12x^4y³-0.9x²y³)÷0.3x²y²等于?
(x-y)³(x-y)²(y-x)等于多少
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
(x-y)²(y-x)³等于多少.
(x-y)²×(y-x)³ 等于多少 解法.
计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²
(x+y)²-(x³+y³)÷(x+y)等于?
(x-2y)³÷(2y-x)²为什么等于x-2y?
计算4(x+y)^5(x-y)^4÷[2(x+y)³*(y-x)²]
(x+y)²-(x+y)³等于多少啊
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x-2y)³÷(2y-x)²等于多少? (-x)²×(-x)³等于多少?
因式分解 -5x³y(x-y)³+20y【x²(y-x)】²