Предмет: Алгебра, автор: batyrhanalihan614

помогите пожалуйста с математикой там 20 б
8 класс

Приложения:

Ответы

Автор ответа: boberon

1

(x – 2)(x + 1/2) = 0

x² + x/2 – 2x – 1 = 0

x² – 3x/2 – 1 = 0

2x² – 3x – 2 = 0

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: abaeva07

1. As our school canteen___ l don't have lunch at school. now.
a) is being repaired b) being repaired c) was repaired
2. l am glad that l___ by this teacher.
a) taught b) am taught c) am teached
3. How __ one travel alone, l wonder.
a) must b) can c) need
4. You__ tell it to me hundred times, dad l am a grownup person.
a) must b) needn't c) need
5. It is a secret. You __ tell it to anyone.
a) needn't b) should c) shouldn't
6. The sky is too grey. It __ rain all day.
a) must be b) may c) could
7. ___ you sendme some money, please.
a) should b) need c) could
8. My uncle had a heart attack l___ to call the Doctor.
a) had to b) needn't c) should
9. It ____ immediately, hurry up!
a) can be done b) must be done c) could be done
10. The exercise ___ in writing .
a) can do b) can be done c) could do
11. Hi, Jack. Can you give me a ___ ? I've missed my bus!
a) ride b) lift c) driver
12. I've never thought that a hitch-hiker can___ the driver.
a) rob b) thief c) murderer
13. ____ of hiking alone don't frighten me.
a) dangerous b) dangers c) danger
14. In some shops you needn't pay by.
a) visa b) credit c) cash
15. Never had a better holiday! It was___!
a) terrible b) terrific c) boring
16. A good tent, a nice site and nice weather will make your holiday unforgettable.
a) camping b) package c) tenting
17. I don't like travelling with many suitcases, bags. I prefer travelling__.
a) light b) lightly c) alone
18. There are ___ museums in our city open to tourist.
a) vary b) varions c) differ
19. when I was in Turkey. I was homesick I ____ my family and friends.
20. The___ of living in this country goes up.
a) price b) cost c) amount

1 год назад

Предмет: Русский язык, автор: DariaTwinckle

Извиняюсь за столь глупые вопросы,но всё же ошибки в моем сочинении будут не уместны
-Придел или предел?
Так же как будет написать правильнее "не разглядим\увидим через телескоп" Может есть ещё варианты?

1 год назад

Предмет: Русский язык, автор: оккккк1

помагите пожалуйста срочно 436

1 год назад

Предмет: Математика, автор: oigfg66

Помогите пожалуйста)))))))

7 лет назад

Предмет: Химия, автор: xsmokerx95

Химия. 9 класс. Решите. Фото. 80 баллов.

7 лет назад