真 简 单 啊
by Zoe_Granger @ 2020-05-31 17:17:54
$$二
by Siyunshan @ 2020-05-31 17:18:00
**简单**理科实验班招生题?
~~完了窝初中白学了~~
by 语文壬孑 @ 2020-05-31 17:18:08
真 简 单 啊
by yu__xuan @ 2020-05-31 17:18:24
不要喷简单了，我数学老师就这么说的
by 打表大蒟蒻 @ 2020-05-31 17:19:16
分母有理化然后带进去没了吧
by cvyl30 @ 2020-05-31 17:20:35
qsjd
by zbr2006 @ 2020-05-31 17:21:48
有理化
by 迷残云 @ 2020-05-31 17:21:48
@[553032651yyj](/user/205821) 不愧是数学神仙%%%
by chenzida @ 2020-05-31 17:22:12
(-6 + n + n^2)=0
by 诱宵美⑨ @ 2020-05-31 17:22:15