(x-y)的2次方乘以(y-x)的7次方等于几?

2025-06-27 21:28:54
推荐回答(1个)
回答1:

(x-y)的2次方乘以(y-x)的7次方
=(y-x)的2次方乘以(y-x)的7次方
=(y-x)的9次方