打开App
360P
一个有趣到计算，精确到小数点后三位！
除了求根公式，了解更多解方程的方法110/153
App03:23
App03:35
App03:44
App02:50
App01:41
App05:57
App04:34
App03:15
App04:49
App09:50
App02:38
App03:07
App01:01
App02:19
App03:16
App03:42
App03:34
App02:04
App04:09
App07:07
App02:12
App08:26
App04:15
App01:56
App01:39
App02:43
App05:45
App01:24
App01:29
App03:56
App06:08打开App观看
