Помогите пожалуйста! Номер один все примеры.а) 7х-4/9 - 3х-3/4 = 8-2х/6б) (5-х)^2 - х(2,5+х) = 0в) 4х^2 + 3х = 0

Помогите пожалуйста! Номер один все примеры.
а) 7х-4/9 - 3х-3/4 = 8-2х/6
б) (5-х)^2 - х(2,5+х) = 0
в) 4х^2 + 3х = 0
- Предмет:
  Алгебра
- Автор:
  rustylj3c
- 5 лет назад

Ответы 2

Спасибо!
- Автор:
  brayden0aeo
- 5 лет назад
- 0
а) $\frac{7x-4}{9} - \frac{3x+3}{4} = \frac{8-2x}{6}$ | * 364 (7х - 4) - 9 (3х + 3) = 6 (8 - 2х)28х - 16 - 27х - 27 = 48 - 12х28х - 27х + 12х = 48 + 16 + 2713х = 91х = 7Ответ: 7б) (5 - х)² - х (2,5 + х) = 025 - 10х + х² - 2,5х - х² = 025 - 12,5х = 012,5х = 25х = 2Ответ: 2в) 4х² + 3х = 0х (4х + 3) = 0х = 0 или4х + 3 = 04х = - 3х = - 3/4х = - 0,75Ответ: 0 или - 0,75
- Автор:
  heisenbergdorc
- 5 лет назад
- 0
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1) True 2) False 3) Not stated
The flag "Jolly Roger" meant death for ships’ sailors and passengers.
1) True 2) False 3) Not stated
The name for the flag "Jolly Roger" is of English origin.
1) True 2) False 3) Not stated
Parrots brought luck to pirates at sea.
1) True 2) False 3) Not stated
"Articles" regulated pirates’ behaviour at sea.
1) True 2) False 3) Not stated After the attack the captain took all the treasures. 1) True 2) False 3) Not stated
In the past pirates did some jobs for English queens and kings.
1) True 2) False 3) Not stated
Francis Drake was the richest English pirate.
1) True 2) False 3) Not stated
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Помогите пожалуйста! Номер один все примеры.а) 7х-4/9 - 3х-3/4 = 8-2х/6б) (5-х)^2 - х(2,5+х) = 0в) 4х^2 + 3х = 0

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Помогите пожалуйста! Номер один все примеры.
а) 7х-4/9 - 3х-3/4 = 8-2х/6
б) (5-х)^2 - х(2,5+х) = 0
в) 4х^2 + 3х = 0