Предмет: Алгебра, автор: Аноним

Решить уравнение 3х² - 12 = 0

Ответы

Автор ответа: lena25073

Объяснение:

3х^2=12

х^2=12/3

х^2=4

х1=2

х2=-2

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: leraler807

ALI BABA AND FORTY THIEVES Ali Baba was such a poor man that he had only one shoe for his two feet . Even mice in his house were hungry . One day his wife said , “ We have no food in the house . No rice . No potatoes . Go and collect leaves in the forest so that I can make a soup . " Ali was a lazy man . He looked for leaves for about ten minutes and then he climbed a tree to sleep . He was afraid of wolves . When he woke up he was surprised to see forty thieves on forty horses . They stopped in front of the big rock . " Open , Sesame ! " shouted the leader . A door in the rock opened . The thieves carried sacks full of gold into the cave . When they had finished , the leader shouted , " Close , Sesame ! " and the door closed . As soon as the thieves had disappeared , Ali Baba jumped down from the tree and said , " Open , Sesame " and went into the cave .
There were shelves all around the walls . The shelves were full of sacks . The sacks were full of gold . Ali took a sack home with him . One of the thieves saw Ali's footprints on the sand . He followed them to Ali's home . He took out his knife and made a cross on the door . " Now I shall know which house it is " , he said . He rode off to get the other thieves . But Ali had seen the thief . He and his wife took the brooms and swept away the footprints . Then he made crosses on every door in the street . When the forty thieves arrived they had their knives between their teeth . But they never found Ali - or the gold . And Ali and his wife lived happily ever after .
I. Find true and false statements . [ Пишите только номер предложения и T / F ) 1 ) Ali Baba was a poor man . 2 ) When he woke up he saw forty wives on forty horses . 3 ) " Open , Sesame ! " thought the leader . 4 ) The thieves carried sacks full of gold into the cave . 5 ) The sacks were full of gold and brilliants .
II . Choose the correct answer ( Inшите только иомер предложения и букву правильного варианта ответа a / b / c / d ) 1 ) What kind of man was Ali Baba ? a ) busy and serious ; b ) stupid and lazy ; c ) poor and lazy ; d ) happy and lazy 2 ) Why did Ali's wife tell him to go and collect leaves ? a ) because they had no food ; b ) they liked leaves ; c ) his wife couldn't cook ; d ) they had no leaves 3 ) What did the leader of the thieves shout to open the cave ? a ) Don't close , Sesame ! b ) Never open , Sesame ! c ) Open the door ! d ) Open , Sesame . 4 ) What were there on the shelves in the cave ? a ) sacks with silver ; b ) sacks with gold ; c ) sacks with sugar ; d ) sacks with salt 5 ) What did Ali take home ? a ) nothing ; b ) a sack with gold ; c ) a sack with silver ; d ) a sack with salt 6 ) Why did the thief follow Ali's footprints ? a ) to kill him ; b ) to thank him ; c ) to know where he lived ; d ) to help him

5 лет назад

Предмет: Математика, автор: games1234567890p

пж помогите срочно надо вот на фото есть

5 лет назад

Предмет: Английский язык, автор: vb815193

помогите пожалуйста срочно

5 лет назад

Предмет: Химия, автор: jenya4

При прокаливании 15,8г перманганата калия KMnO4 получено 0,896 л кислорода? Каков выход кислорода?

9 лет назад

Предмет: Математика, автор: айка191

помогите плииз номер732

9 лет назад