4+12(x-y)+9 (x-y)²等于多少
4+12(x-y)+9 (x-y)²等于多少
(x-y)²(y-x)³等于多少.
(x-y)²×(y-x)³ 等于多少 解法.
4+12(x-y)+9(x-y)^2等于多少
4+12(x-y)+9(x-y)^2等于多少?
(x-y)³(x-y)²(y-x)等于多少
(x-y+z)(x+y+z)等于多少.
(x-2y)³÷(2y-x)²等于多少? (-x)²×(-x)³等于多少?
9(X+Y)的八次方乘以(X-Y)的七次方除以【3(X+Y)³·(X-Y)³】²等于多少
(x-y)的四次方(x-y)-2(x-y)²(y-x)³等于?
(x^2-y^2)2除以(x+y)^2再除以(x-y)等于多少
-x+3y=5求5(X-3Y)²-8(x-3y)-5等于多少/