Решите уравнение: [tex]4 x^{2} +4x+1 = 0[/tex] - №24798499

Решите уравнение:
[tex]4 x^{2} +4x+1 = 0[/tex]
- Предмет:
  Алгебра
- Автор:
  arynuigh
- 5 лет назад

Ответы 2

желательно конечно видеть квадраты, 1-2-1, 4-4-1, 1-6-9 и так далее
- Автор:
  anniemclaughlin
- 5 лет назад
- 0
D= b^2 - 4acD=16 - 16 = 0 x = -b\2a x= -4\8 = -1\2
- Автор:
  darren
- 5 лет назад
- 0
Добавить свой ответ

Еще вопросы

Choose the right word:
1. I had a very high_________.I knew I would be all right if I avoidedpneumonia.
a) fever b) inflammation c) temperature d)cough e) flu
2. We should eat ____________food if we want to live long.
a) junk b) fat c) plain d) healthy e) old
3. You shouldn`t __________TV lying on the sofa.
a) watch b)see c)look d) hear e ) play
4. Americans speak_____________
a) English b)American c)French d)German e) Spanish
5. Parents __________their children from harm.
a) like b)make c ) play d) help e) protect
6. Some people worry about their_________ and use a balanced diet.
a) health b)face c)weight d)skin e) children
7. I don`t want to go _______ this chess game.
a) from b) for c) on d) in e) at
8. STOMACH__________________
a) home b) lights c) ill d) game e) ache
Choose the right answer:
9. How are you?
a) I am OK. b) I am Colin. c) Yes, I am. d) I am a boy. e) I am not.
10. What does Arman want to be?
a) Yes he does b)He wants to be pilot. c) He wants some milk. d) Yes, he is e) a baby.
11. I`m tired because I__________________________.
a) works b) am working c) have been working d) has worked e) worked
12. This time next week I______________in the Black Sea.a) will swim b) swim c) shall be swimming d) swimming e) swims
13. She said she_____________in the garden at 3 o`clock next Monday.
a) has worked b) would work c) will work d) would be working e) works
14. You must put ______________your coat. It is cold in the street.
a) on b) off c) at d) in e) away
15. We___________learn English if we __________ lazy.
a) will, be not b) shall,are not c) -, will not d) shall, don`t be e)`ll, `ll not
16. If she__________ money, she_____________a car.
a) are, will come b) had, would buy c) have, buys d) has, will buy e) has, buys
17._______Ann finishes cleaning the room, she`ll go to her friend.
a) if b) when c) at d) where e) these
18. Omar _______ drive, but he doesn`t have a car.
a) should b) must c) have to d) may e) can
19. My aunt hates_______________, she likes to read books.
a) watch TV b) watching TV c) watched TV d) watches TV e) is watch TV
20. That new beautiful dress is worth_______________.
a)to wear b) wore c) wearing d)wears e) wear
21. We have been living in Kazakhstan_____________________.
a) since 1980 b) two days c) for 3 hours d) in 2 years e) long ago
22. When ________she usually go to school?
a) do b) does c) did d) is e) are
23. Will you please _______________reading ?
a) take off b) go back c) get on d) put off e) go on
24. The capital of the UK is_________________.
a)London b) New York c) Washington d)Oxford e) Boston
25. If I learned English better, I_______________to the United States of America.
a) will go b) would go c) shall go d) should go e) went
- Предмет:
  Английский язык
- Автор:
  ryliegwoo
- 5 лет назад
- Ответов:
  
  2
- Смотреть
Помогите, пожалуйста, написать эссе. Согласны ли вы и как понимаете высказывание Милтона Фридмана "правительства никогда ничему не учатся. Учатся только люди. "
- Предмет:
  История
- Автор:
  petronilaespinoza
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Нужно записать пятью предложениями,что нового вы узнали из книг помогите пожалуйста
- Предмет:
  Русский язык
- Автор:
  jaysonhaynes
- 5 лет назад
- Ответов:
  
  2
- Смотреть
запиши слова в два столбика: воробьи, прорубь, деньки, ученье, коньки, ульи.
- Предмет:
  Русский язык
- Автор:
  julianne
- 5 лет назад
- Ответов:
  
  0
- Смотреть

How much to ban the user?

1 hour 1 day 100 years