(x-y)²-8(x-y-2)

学习 时间:2026-03-30 12:35:48 阅读:5703
(x-y)²-8(x-y-2)

最佳回答

魔幻的丝袜

清脆的水壶

2026-03-30 12:35:48

(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?