[tex] -x^{2} [/tex] = 2х-3 Срочно пожалуйста

[tex] -x^{2} [/tex] = 2х-3
Срочно пожалуйста
- Предмет:
  Алгебра
- Автор:
  fawn
- 5 лет назад

Ответы 4

Спасибо большое)
- Автор:
  marbleberg
- 5 лет назад
- 0
Пожалуйста)
- Автор:
  castaneda
- 5 лет назад
- 0
- x² = 2x - 3x² + 2x - 3 = 0D = 2² - 4 * 1 * (- 3) = 4 + 12 = 16 = 4² $x_{1}= \frac{-2+4}{2}=1\\\\ x_{2}= \frac{-2-4}{2} =-3$ Ответ: - 3 ; 1
- Автор:
  peytontogw
- 5 лет назад
- 0
- x² = 2x - 3- x² - 2x + 3 = 0x² + 2x - 3 =0x = - 2±√2² - 4 * 1 * ( - 3 )/2*1x = - 2±√4+12/2x= - 2±√16/2x = - 2 ± 4/2x = - 2 +4/2x = - 2 - 4/2x = 1x = - 3Ответ - 3; 1
- Автор:
  pixie32
- 5 лет назад
- 0
Добавить свой ответ

Еще вопросы

TEST

20 баллов

1. What is the capital of Great Britain?

a) Edinburgh

b) Boston

c) London

2. How many parts does Great Britain contain?

a) 4

b) 3

c) 5

3. What is the English flag called?

a) the Union Patric

b) the Union Jack

c) Lines and Crosses

4. Who is the Head of State in Britain?

a) the Mayor

b) the Queen

c) the Prime Minister

5. What is the river in London?

a) The Thames

b) the London

c) the Avon

6. What city did The Beatles from?

a) London

b) Manchester

c) Liverpool

7. They say the Loch Ness Monster lives in a lake in ……….

a) Scotland

b) Wales

c) Ireland

8. Who rules the UK?

a) the Prime Minister

b) the Queen

c) the Parliament

9. Where is Brighton situated?

a) in the middle of England

b) in the northwest of England

c) on the south coast of England

10. The UK is separated from the continent

a) by the Irish Sea

b) by the Atlantic Ocean

c) by the English Channel

11. The population of the UK is

a) over 57 mln people

b) over 70 mln people

c) over 50 mln people

12. Who has two birthdays in Britain?

a) the Prime Minister

b) the Queen

c) all British people

13. Clover with four leaves brings …

a) good luck

b) a lot of fun

c) bad luck

14. The name “United Kingdom” was first used in …

a) 1707

b) 2000

c) 1917

15. Great Britain includes …

a) Wales, Northern Ireland, Scotland.

b) Northern Ireland, England, Scotland.

c) Wales, England, Scotland.

16. The British climate is …

a) cool and changeable

b) hot and sunny

c) windy and cold

17. What is the home town of W. Shakespeare ?

a) London

b) Stratford-upon-Avon

c) Brighton

18. What does the Queen do?

a) She rules the country.

b) She works at the Parliament.

c) She visits schools and hospitals.

19. The Queen lives in …

a) the Tower of London

b) the Buckingham Palace

c) Westminster Abby

20. The UK consists of … islands.

a) 50

b) 2

c) more then 5 000

21. Where is a famous Beatles museum situated?

a) Liverpool

b) Brighton

c) Manchester

22. The National day of England is on the …

a) 23rd of March

b) 1st of March

c) 23rd of April

23. Educational centers of England are …

a) Liverpool and Manchester

b) Oxford and Cambridge

c) Leeds and London

24. Snowdonia National Park is situated in …

a) Wales

b) Northern Ireland,

c) Scotland.

25. The National day of Wales is on the …

a) 23rd of March

b) 1st of March

c) 23rd of April

26. The bagpipes are ….

a) an ancient mountain

b) the national day

c) a musical instrument

27. The Thames is … in England.

a) the longest river

b) the smallest river

c) the dirtiest river

28. Snowdon is … in Wales.

a) the deepest lake

b) the highest mountain

c) the biggest waterfall

29. Ben Nevis is …

a) the industrial region

b) the mountain in Wales

c) the mountain in Scotland

II. Explain the word (what is it?)

1. The UK-

2. The Union Jack -

3. Belfast -

4. Cardiff -

5. Edinburgh -
- Предмет:
  Английский язык
- Автор:
  monkeyyjzs
- 5 лет назад
- Ответов:
  
  1
- Смотреть
сделать синтаксич разбор.Тропинка огибает беспорядочное нагромождение камней,осложняющих путь.8кл
- Предмет:
  Русский язык
- Автор:
  joey35
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Постройте треугольник ABC, если А(0;3), В(-2;-3), С(4;0)
- Предмет:
  Математика
- Автор:
  maverick11
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Помогите пожалуйста кратко ответить на тему: Загрезнение планеты и
что не нужно делать чтоб наша планета не загрезнялась.Спасибо.
- Предмет:
  Окружающий мир
- Автор:
  salvatore
- 5 лет назад
- Ответов:
  
  2
- Смотреть

[tex] -x^{2} [/tex] = 2х-3 Срочно пожалуйста

Ответы 4

Топ пользователей

[tex] -x^{2} [/tex] = 2х-3
Срочно пожалуйста