(x-y)²-8(x-y-2)

学习 时间:2026-08-25 01:04:50 阅读:4660
(x-y)²-8(x-y-2)

最佳回答

神勇的店员

跳跃的帅哥

2026-08-25 01:04:50

(x-y)²-8(x-y-2)
=(x-y)²-8(x-y)+16
=(x-y-4)^2
再问: ^是什么意思?