(x-y)²-8(x-y-2)

学习 时间:2026-06-06 03:45:25 阅读:5492
(x-y)²-8(x-y-2)

最佳回答

机灵的蜜蜂

现代的红酒

2026-06-06 03:45:25

(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?