Предмет: Математика, автор: NastaiLitvinova

Решить уравнение log¼(x²-3x)=-1

Ответы

Автор ответа: Маша888

0

log1/4 (x²-3x) = log1/4 4
x²-3x = 4
x² - 3x - 4 = 0
x1 = -1
x2 = 4

Ответ: х1 = -1, х2 = 4

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Математика, автор: Lolla169

1-6i
____
1+9i
типа дробь

6 лет назад

Предмет: Химия, автор: artemsilantjew5656

1) вещества состоят из молекул?
2)молекулы образованы атомами?

6 лет назад

Предмет: Английский язык, автор: VlodimerColodov

Put the verbs in brackets into the correct present tense (Simple or Continuous).

Cuckoos (not build) __________________nests. They (use) _________the nests of other birds.

She usually (drink)_____________ coffee, but today she ____________________ (drink) tea.

I’m busy at the moment. I (redecorate)_______________________________ the room.

How ____you (get)___ to work as a rule? – I usually (go) ______by bus but tomorrow I (go)____________________ in Tom’s car.

You always (write) with your left hand? _____________________________________

This car (make)__________________ a very strange noise. You (think) it is alright? _______________________________________

2. Раскройскобки, употребив Present Perfect/ Present Perfect Continuous.

I _____________________ (do) my homework recently.

He _________________________ (learn) the poem all the morning.

_______ you ever __________ (be) to France?

She _________________________________ (not/ donate) money yet.

You look fantastic! ____ you _________ (buy) a new dress?

We _________________________________ (write) the test for 2 hours!

Tom _________________________________ (clean) the house since morning.

How long ____________ you ________________ (study) English?

She _____ never __________ (taste) Italian food.

They _________________________________ (read) a book since Monday.

3. Put the adjectives in brackets into the correct form.

1. My sister is ____________( funny) and __________ (creative) person in the world.

2. Who is your _________ (good) friend.

3. Sally is three years _______(young) than me and she is ___________(sensible) person I know.

4. John is ________(selfish) in our family. Besides he is as _________(stubborn) as a mule.

5. I think that… (little) he could do is to give her some money.

6 лет назад

Предмет: Литература, автор: Аноним

Дети распределяли слова в алфавитном порядке. Вот что у них получилось:

Сергей: камзол, караван, каравай, карандаш, карета.
Лена: камзол, каравай, караван, карета, карандаш.
Илья: каравай, караван, карандаш, карета, камзол.
Юра: камзол, каравай, караван, карандаш, карета.
Маша: камзол, караван, карандаш, каравай, карета.

Кто выполнил задание правильно?

Выберите вариант ответа:
Лена
Илья
Юра
Сергей
Маша

9 лет назад

Предмет: Алгебра, автор: katyath

Помогите с алгеброй 8 класс

9 лет назад