Cho hỏi sao đổi được tên vậy ???

2x² + 4 >= 2(x+4)²

(=) 2x² + 4 >= 2(x²+8x+16)

(=) 2x² + 4 >= 2x² + 16x + 32

(=) 4 >= 16x + 32

(=) 16x >= 32 - 4

(=) 16x >= 28

(=) x >= 1,75

vậy 2x² + 4 không nhỏ hơn 2(x+4)² (=) x >= 1,75

Learning English is necessary

1) She is going to see the movie at Sao Mai theater.
=> Where is she going to see the movie ?

2) Miss.Lan is slim and she ha long black hair.
=> What does Miss lan look like ?

3) Nam is generous and kind.
=> What does Nam like ?

4) My family went to Sapa last night.
=> Where did your family go to last night ?

5)He often drinks coffee in the morning.
=> What does he often drink in the moring?

6) Miss Mai will meet Miss Smith at the airport.
=> Who Miss Mai will meet at the airport ?

7) He has worked in the comparly for 10 years.   
=> How long has he worked in the company ?

1. I intend to buy a new mobile phone

=> I____am going to buy a new mobile phone_________________________________

2. Hong is Tuan's sister

=> Tuan is______Hong's brother__________________________

3. My father sides his bike to work everyday

=> My father goes____to work by bike every day_______________________

4.No one in my class is taller than Manh

=> Manh is____the tallest person in my class________________________________

5.How mich is this ear ?

=> How much does ____this ear cost ?__________________

6.What is her address?

=> where____does she live_______________________

7.My uncles farm has a lot of vegetables and cattle

=> there are ____a lot of vegetables and cattle in my uncles farm_____________________________________

8.She is going to make some tea for her father after dinner

=> She____intend to make some tea for her father after dinner_____________________________________

6/ .Why do you need a phone card?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 - I need a phone card to phone my parents.
7/ . . .What does Mr.Viet do ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Mr. Viet is a farmer.
8/ . . . .Where does Lan often do in her free time ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Lan often goes to the library in her free time.
9/ . . . .What is your mother doing in the kitchen at the moment ? . . . . . . . . . . . 
- My mother is cooking in the kitchen at the moment.
10/ . . . . What does Nam like playing after school ?. . . . . . . . . . . . . . . . . . . . . . . 
Nam likes playing soccer after school.
11/ . . . . . .How often do you go to the movie ? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- I go to the movies twice a month. 
12/ . . . How old will Hoa be on her next birthday?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Hoa will be twelve on her next birthday
13/ . . . . .What is Nam's favorite subject? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- Nam’s favorite subject is Electronics.
14/ . . . . . . How much do the shoes cost ?
Or how much are the shoes ?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
- The shoes cost 50,000 dong.

Các hộp nhãn đề sai

Nên mở hộp rắn độc

Nếu có chứa bông hồng

Bài toán đã giải xong

Nếu chỉ là rỗng không

Thì hộp ghi bông hồng

Chắc chắn là rắn độc

Còn hộp đề rỗng không

Sẽ là đựng bông hồng

 Bạn thấy tớ đúng không.