Предмет: Алгебра, автор: agnessinnocent

решите пожалуйста
х^2-2х=0
х^2-16=0
2х^2=0
4х^2=8х
х^2-2=0

Ответы

Автор ответа: Antaresski

0

Ответ:1- x^2=0+2x

x^2=2x

x=2

2- x^2=0+16

x^2=8

x=8

Остальное по аналогии)

Объяснение:

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: lola745

Контрольная работа по английскому языку за 4 четверть для 7 класса 1. Прочитайте текст и ответьте на вопросы после него: Gerald Durrell: the Friend of All Animals Gerald Durrell, a popular British writer and the author of wonderful books about animals, was born in India in 1925. His mother often joked that his first word was 'zoo'. When he was three years old his family moved to England, then to the Greek island of Corfu - to get away from the terrible Englishweather. With his moth¬er, his sister Margo, and his brothers, Leslie and Larry, Gerald spent five years on the island. That was the start of his long career as an animal expert. They lived in an old villa. One day Gerald found a big scorpion in the garden wall. The scorpion had lots of light brown babies on her back. He put them into a matchbox and hurried home. It was time for lunch, so Gerald put the matchbox on the shelf... He began his meal and forgot about his new pets. He suddenly remembered about them when he heard a noise from the sitting room. He ran there and saw his brother Larry with an open matchbox in his hands. And the scor¬pions were free! Larry shouted “Help”, the Durrells' dog went wild and the servant dropped the plate. The scorpion and her babies ran all over the room. Gerald had to catch them with a tea¬spoon, and put them back in the garden wall. In 1939 the Durrells moved back to London because of the war. At the end of the war Gerald got a job in Whipsnade Zoo where he started look¬ing after the lions and other animals. On his 21st birthdayGerald decided to go on expeditions to collect wild animals for British zoos. Back home in England he kept a lot of animals in his sisters garden - monkeys, snakes, squirrels, frogs and others. Geralds brother Larry asked him to write about his journeys to different places. This is how Gerald Durrell became a famous writer. The title of one of his famous books is “My Family and Other Animals”. 1. Who was Gerald Durrel? 2. When and where was he born? 3. How many sisters and brothers did he have? 4. How old was Gerald when his family moved to England? 5. Why did the family move to Greece? 6. How much time did Gerald spend on Corfu? 7. What did Gerald find in the garden wall one day? 8. Why did the Durrels move back to London in 1939? 9. What animals did he keep in his sister`s garden? 10. What is the title of one of his famous books?
2. Ответьте на вопросы:

1. What sea bird feeds mostly on fish and follows ships?
2. What birds look like people wearing black coats and white shirts, can stand up straight and walk very funny?
3. What bird is the best singer?
4. What animals are the closest relatives of humans?
5. How many kinds of insects do people know?
6. How many flowers must a bee visit to make a tablespoon of honey?
7. Where can we find ants?
8. What are the most common trees in England?
9. What animals live on the British Isles?
10. What flower is the national emblem of England?

5 лет назад

Предмет: Математика, автор: olegsoltisps

пжжж допоможіть срочно

5 лет назад

Предмет: Українська література, автор: kamilavlasenko41

Які вади людського характеру засуджуються в байці"Щука"?

5 лет назад

Предмет: Математика, автор: starovers

корень из(х-7) + корень из(3-х) = 92

9 лет назад

Предмет: Математика, автор: mwks96

решите) 2•3^(x+1)-3^(x)=15

9 лет назад