Приведи квадратное уравнение (5х- 15х + 2) = 2х2+9х+ 73 к виду ах2+с— 0 и найди его корни.Т2= 0х1 =Т2 =+ 75+ 70+ 3+ -3- 7​

1. I want to know if Jane is from England.
2. I want to know if she studied at Oxford University.
3. I want to know if you have classes five days a week.
4. I want to know if you have you seen Stonehenge.
5. I want to know if you learnt History of England at school.
6. I want to know if you are going to leave for Kiev.
7. I want to know if the train has arrived.
8. I want to know if have you been waiting for me long.
9. I want to know if she will be coming soon?
10. I want to know if the children have been taken out for a walk.
11. I want to know if there are any questions.
12. I want to know if I have to tell the truth.