Предмет: Алгебра, автор: школьник13

Решите уравнение 7х(в квадрате)+14=0

Ответы

Автор ответа: Rechnung
0
7x^2+14x=0\7x(x+2)=0\x_1=0\\x_2+2=0\x_2=-2

Ответ: -2;0
Автор ответа: школьник13
0
сори там 7х(в квадрате)+14х=0
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: yukz
Найдите периметр прямоугольники со сторонами
4 целых 1/2м и 2 целых 3/5м.​
6 лет назад
Предмет: Математика, автор: alexksusha1980
Сколько будет (309-59)÷50
6 лет назад
Предмет: Английский язык, автор: amanzolkyzykarakat
SUBJECT: Present Simple, Present Continuous



A) Read the paragraph and answer the questions:

Brian is a doctor. He looks after sick people. He usually gets up at 6.00 o’clock. Today he is

late, it is 6.30 and he is still in bed. He usually goes to work by train but today he is driving to

work. He arrives at work at 6.30 every morning but it is 7.30 now and he is still driving.

It’s 12.00 o’clock now. He always has his lunch at 12.00 but today he isn’t having lunch at

12.00, he is looking after his sick patients. It is half past seven now, Brian is watching TV. He

usually watches TV at half past seven because his favorite programme starts at half past seven.

Brian has his dinner at 8.30 everyday and he is having dinner now.

It is 24.00 now Brian is going to bed. He always goes to bed at 24.00.



1. What does Brian do? 6. When does he always have his lunch?

2. What time does he usually get up? 7. What is he doing at 12.00 today?

3. How does he usually go to work? 8. Why does he usually watch TV at 7.30?

4. Why is he driving to work today? 9. What time does he go to bed?

5. What time does he arrive at work everyday? 10. What time is he going to bed now?



B) Fill in the blanks with PRESENT CONTINUOUS or SIMPLE PRESENT:



1. The children ………………………….. (play) outside now.

2. She usually ………………………. (read) the newspaper in the morning.

3. I …………………………… (do) my homework now.

4. I ………………………… (eat) my dinner now.

5. ……………………………. (you / want) a pizza?

​
6 лет назад
Предмет: Обществознание, автор: ddd13
Смысл высказывания "несправедливо ликовать над телами погибших"
9 лет назад
Предмет: Математика, автор: Aliyushka82
 а) После того как в трехлитровую банку положили овощи в нее доверху долили 200 куб.см рассола. Какой объем овощей в пяти таких банках?
б) для покраски двери площадью 120 кв.дм необходимо 2л белой краски. Сколько такой же краски потребуется для того. чтобы покрасить два подоконника длиной 1м2дм и шириной 1дм каждый?
9 лет назад