1а) x = 4/7
1б) x1 = –5, x2 = 5
2а) x1 = –3, x2 = 4
2б) x1 = –√2, x2 = √2, x3 = –4, x4 = 4
3a) x1 = –2, x2 = 2
3б) нет решений
1а) x = 4/7
1б) x1 = –5, x2 = 5
2а) x1 = –3, x2 = 4
2б) x1 = –√2, x2 = √2, x3 = –4, x4 = 4
3a) x1 = –2, x2 = 2
3б) нет решений