Предмет: Алгебра, автор: еиае

X^2+x-72=0 дискриминант найти

Ответы

Автор ответа: Саида111111

0

D=1-4*1*(-72)=1+288=289

x1=-1-17/2*1=-18/2=-9

x2=-1+17/2=16/2=8

x1=-9
x2=8

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Қазақ тiлi, автор: lera0945

ЫС
Өзің жаз
қалами
әлем!
дүние
білім
кітап
үй
домбыра подежные окончания помогите

6 лет назад

Предмет: Геометрия, автор: vladstraticuk35

помогите пожалуйста нужно срочно

6 лет назад

Предмет: Английский язык, автор: Nekkyshow

Помогите пожалуйста я не понимаю Worksheet №8

(Обязательно в тетрадях запишите номер рабочего листа!!!!)

I. Put Was or Were. (Write down only answers)

1. My little brother _______ born yesterday.
2. We __________ at the hospital.
3. My grandma and grandpa ___________ staying with me.
4. My brother ____________sleepy.
5. Mother and father _________ sleepy too.
6. Our baby _________ quiet.
7. All the other babies ___________ crying.
8. We ____________ all so happy to have a new baby.
9. It_______ a great day.

II. Make sentences from these words.( Write down the whole sentences)
yesterday, we, at the theatre, were.
was, in town, two days ago, Nick.
a good student, Fred, many years ago, was.
Last, at home, were, Friday, we.
sixteen, George, last, was, year.

III. Finish the sentences using:
I wasn’t, you weren’t, he wasn’t, she wasn’t, it wasn’t, they weren’t (Write down only answers)
Were they in Paris last summer? No, _
Was she student last year? No, _
Was I sad yesterday? No, _
Was he at home ten minutes ago? No, _
Was it cold yesterday night? No, _

6 лет назад

Предмет: Математика, автор: LerkaDenisova

помогите решить пример 7 - 3целых 59

9 лет назад

Предмет: Математика, автор: jolk5

Как решить в столбик 480:6

9 лет назад