nigap

01.03.2021 17:56 •  Математика

Вариант 7 1. 3х – 5х + 2 = 0
2. 7х2 + 12х + 5 = 0
3. х2 + 3х - 10 = 0
4. х2 + х – 2 = 0
5. 4х2 + 20x +25 = 0
6. х - 3х + 5 = 0
7. х2 + 2x = 0
8. х2 – 5 = 0
9. 2х2 + 1 = 0
10. (х +3)2 = 16х
11. (2x + 3)2 = (2x - 3)2
12. (х-2)(х + 2) = x