Do n+3\(⋮\)n+3 (*) => (n+3)²\(⋮\)n+3 hay n²+6n+9\(⋮\)n+3

=> n²+6n+9-(n²-7)\(⋮\)n+3 hay 6n+16\(⋮\)n+3

Từ (*) => 6n+18\(⋮\)n+3

=> 6n+18-(6n+16)\(⋮\)n+3 hay 2\(⋮\)n+3

=> n+3 \(\in\){-2;-1;1;2}

Vậy n \(\in\){1;2;4;5}

Ta có: \(n^2-7⋮n+3\Leftrightarrow n^2-9+2⋮n+3\Leftrightarrow\left(n-3\right)\left(n+3\right)+2⋮n+3\)

\(\Rightarrow\)\(2⋮n+3\)

Vậy n+3 là Ước của 2

Ta có bảng sau: 

Vậy n=....

write rồi nha

ahihi

ai xin k 1 cái cho lên top 20 nha

-The kinds of traditional Vietnamese performance I know is buffalo fighting (Chọi trâu)

- Yes, I know a little.

Yes, I have.

Yes, I did.

Because Vietnamese water puppetry has been introduced to many countries all over the world and received much love from audiences.

Hơi khó, không biết đúng hay sai.

1. I know: Ca Tru singing, Viet Nam cai luong, Cheo singing

2. Yes, I do

3. Yes, I have been to a water puppet show

4.Yes, I did. Because it is amazing and it is different from many others traditional Vietnamese performance I know

What kinds of traditional Vietnamese performance do you know about?

-> I know: Ca Tru Singing, Vietnam Cai Luong, Cheo Singing...

Do you know about water puppetry?

-> Yes, I do.

Have you been to a water puppet show?

-> Yes, I have been to a water puppet show.

If yes,did you like it?Why/Why not?

-> Yes, I did. Because it's very amazing and it is different from many others traditional Vietnamese performance I know.

Trịnh Xuân Nguyên

1. You can fail or you can study hard for this exam.

2. It's too easy to get flu.

3. Children like cookies and milk most.

4. You will keep fit and doing exercise to stay in healthy.

5. I like tea but I don't like coffee.

6. Can you tell me how to cook the rice please?

7. I want to eat an omelette. What ingredients do I need?

8. What Vietnamese food do you like best?

9. Pho is a kind of special Vietnamese soup.

10. My brother likes to drink coconut juice most.

11. Did you know that Temple of Literature and the Imperial Academy is a famous place and history culture in Vietnam?

12. The Temple of Literature was found in 1070.

 I'd like some milk, please! nghĩa là Tôi muốn một ít sữa, làm ơn!

 Here you are nghĩa là Của bạn đây

 No, thanks nghĩa là không,cảm ơn

I have two nghĩa là  tôi có hai

You're welcome  nghĩa là Không có gì

tôi muốn muốn một ích sữa làm ơn

tôi có hai

No

When I was a university student, I went to a village which was the living place of my best friend's grandfather's house. It was in a remote area and the natural scenery I saw there was the most beautiful natural scenery I have ever seen. It was in (...say the name of a place...) and the small river, the hill, the green fields and the blue sky made a combination that I felt something out of the world. I saw it in one autumn evening when I went to explore the surroundings of the village. That was an awe-inspiring scenery that I will never forget. I saw this scenic beauty in 2011 and it was mid-autumn season then.

My friend, I and one of my friend's cousin were present at that time and I heard from my friend that his village was a very beautiful place. I could not believe how much beautiful it was until I saw it with my own eyes.

We left for the river in the evening and I was amazed to notice the hill and the sloping road track beside it. The river was flowing gently and the vast paddy fields were all around us. I heard the chattering of the birds in the green trees and the sound was creating a harmony in my ears.

To me, this was a truly amazing feeling to witness a natural scenery that could exist only in our imagination. I have seen many rivers, hills and paddy fields but in my friend's village, they were arranged in such a way which is only possible in an artist's picture. The blue sky seemed very nearer to the horizon and the vast green all around us make me feel like visiting in a fairy land.

Dịch câu : Do you know the subjects ? What their Vietnamese equivalents ?

Bạn có biết những môn nào? Những gì tương đương Việt của họ?

Bạn có biết các môn học? Những gì tương đương tiếng Việt của họ?

Dịch câu : Do you know the subjects ? What their Vietnamese equivalents ?

=>Bạn có biết những môn nào? Những gì tương đương Việt của họ?

Check (V) the most suitable sentence

1.A: ........ Can I get a drink?

...√....can I get you a drink?

B: no, thanks. I'm not thirsty.

2.A:....√......would you please payme in cash?

........would you like to pay me in cash?

B:all right. How much is it?

3. A:you know that book I lent you. Can i have it back if you've finished with it?

B:..........of course. I give it to you this afternoon

.....√.....of course. I'll give it to you this afternoon.