Вы умеете решать квадратные уравнения？
2 months ago 00:00:39 1
2 months ago 00:03:51 1
2 months ago 00:01:04 2
2 months ago 00:01:18 7
2 months ago 00:01:18 2
2 months ago 00:01:04 2
2 months ago 00:00:14 139
2 months ago 00:01:09 1
2 months ago 00:23:39 1
2 months ago 00:38:21 4
2 months ago 00:01:04 9
2 months ago 00:03:33 1
2 months ago 01:00:45 1
2 months ago 00:01:18 2
2 months ago 00:01:18 5
2 months ago 00:31:30 26
2 months ago 00:03:04 1
2 months ago 00:03:40 1
2 months ago 00:01:04 4
2 months ago 00:01:38 2
2 months ago 00:01:04 1
2 months ago 00:03:12 1
2 months ago 00:17:21 1
2 months ago 00:17:47 1
