(x-2y)³(2y-x)²等于
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
(x-2y)³÷(2y-x)²等于多少? (-x)²×(-x)³等于多少?
求因式分解(x-y)²-2(x-y)³和(x+y)(x-y)-x(x-y)
(x-y)²(y-x)³等于多少.
(x-y)²×(y-x)³ 等于多少 解法.
(x-2y)³(2y-x)²等于
已知x=1/y,则(x-1/x)(y-1/y)等于 A、2x² B、2y² C、x²+y&
(x-2y)³÷(2y-x)²为什么等于x-2y?
(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
(x-y)的3次幂乘(x-y)的2次幂乘(y-x)等于?
(x-2y)²+(2x-4y)(x+y)+(x+y)²
(x-y)³(x-y)²(y-x)等于多少