Предмет: Алгебра, автор: Rrrrrtiq

Розкласти на множники:
2х^2-х-7=0

Ответы

Автор ответа: nebesnaifly
0

Ответ:

4x^-7=0

4x^=7

x^ =7:4

x^=1,75

x=-1,75

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: LeraStar1
SOS
What is going to happen?Write it down.
Example:You and your friends got an invitation letter from English students.You (visit)/
Great Britain.-We are going to visit Great Britain
1.Linda has a toothache(зубная боль).She (see) the dentist.
2.They decided to arrange a picnic.They(have) a nice time.
3. Andrew has a little sister.His parents are busy today.He (stay) with his sister.
4.It's the weekend.It's sunny and warm.We (walk) in the park.
5.Some British students would like to come to Russia in October.We (invite) then.
НЕ УБИРАЙТЕ ПЛЫЗЗ Я ДОЛЖНА СДЕЛАТЬ 9 НОМЕРОВ
1 год назад
Предмет: Русский язык, автор: 859Катюша859
сочинение только из глаголов
1 год назад
Предмет: Английский язык, автор: bryskab

 

Put each verb in brackets into a suitable past tense.

This time last year I (1) ___ (cycle) in the rain along a country road in France with a friend of mine.

 We (2)___ (decide) to go on a cycling holiday in Normandy. Neither of us (3) ___ (go) to France before, but we (4) ___ (know) some French from our time at school and we (5)___ (manage) to brush up on the basics.

 Now we (6) ___ (wonder) if we (7) ___ (make) the right decision.

 We (8) ___ (plan) our route carefully in advance, but we (9) ___ (forget) one important thing, the weather.

It (10) ___ (rain) solidly since our arrival and that night we (11) ___ (end up) sleeping in the waiting room at a railway station.

Then the next morning as we (12) ___ (ride) down a steep hill my bike (13) ___ (skid) on the wet road and I (14)___ (fall off).

I (15) ___ (realise) immediately that I (16) ___ (break) my arm, and after a visit to the local hospital I (17___ (catch) the next train to Calais for the ferry home.

Unfortunately my parents (18) ___ (not expect) me home for a fortnight, and (19) ___ (go) away on holiday.

So I (20) ___ (spend) a miserable couple of weeks alone, reading Teach Yourself French.
1 год назад
Предмет: Математика, автор: drodelena
сколько тысяч , сотен и десятков в числе 280640
8 лет назад
Предмет: Физика, автор: Tatanichka
чему равна длина волны на воде, если скорость ее распространения равна 2,4 м/с , а тело,плавающее на воде, совершает 30 колебаний за 20 секунд
8 лет назад