(-X-Y)的4次方÷(X+Y)的3次方

2024-11-29 11:49:11
推荐回答(2个)
回答1:

解:原式=-(x y)四次方÷(x y)三次方 =(x y)四次方÷(x y)三次方 =x y

回答2:

解:原式=(x+y)^4*(x+y)^(-3)
=(x+y)^(4-3)
=x+y