x-(5x+3)=2x-4 (x-3)^2=(2x+7)^2 2x^3-18x=0

tổng của 2 số là 64 biết số hạng thứ nhất là 39 tìm số hạng thứ hai

Cho biểu thức: A = (-a - b + c) – (-a – b – c) a) Rút gọn A b) Tính giá trị của A khi a = 1; b = -1; c = -2

V Choose the best answers (A, B, C or D). 1. Peter …………….. three goals for our team and made it a hat trick. A. scores B. scored C. plays D. played 2. Our school football team ………….. the match with Nguyen Du school last Saturday. A. wins B. won C. scores D. scored 3. At the weekend we can play a …………….. of badminton or …………….. join in a football match. A. sport B. game C. match D. break 4. Playing sports helps us get …………….. A. free B. fat C. fittest D. fitter 5. Minh’s dream is to become a …………….. A. loser B. champion C. contest D. gamer 6. I’d like to watch motor racing because it is very …………….. A. frightening B. exciting C. excited D. boring 7. My sister often …………….. badminton in her free time. A. play B. plays C. playing D. to play 8. When you go to the zoo, don’t …………….. the animals. A. do B. play C. watch D. tease 9. Sports and games …………….. an important part in our life. A. play B. do C. make D. do 10. Football is regarded …………….. the most popular sport in the world. A. for B. as C. like D. of 11. …………….. sports do you like to watch on television? A. What B. How C. Do D. How often 12. I usually play football when I have …………….. A. spare time B. good time C. no time D. times 13. In team sports, the two teams …………….. against each other in order to get the better score. A. do B. make C. are D. compete 14. …………….. do you do judo? - Twice a week. A. Why B. How often C. Where D. When 15. Team sports are sometimes called …………….. sports. A. compete B. competition C. competitor D. competitive

Giúp mình 24/ x^2+2x-8 - 15/x^2+2x-3=2

Chọn từ sai trong câu tiếng anh sau đây và sửa lại cho đúng: 1. His family was very poor, because he had to work for a company. a. very b. because c. had to work d. a 2. When you want to go fishing this morning, i'll go with you. a. When b. to go c. this morning d. i'll go 3. I've watched the film what is about the life on other planets. a. I've watched b. what c. is about d. on other planets 4. Minh asked me how far is it from the airport to my house. a. asked b. how far c. is it d. my 5. If i were three inches taller, i would apply on that job. a. were b. taller c. would apply d. on

Một tủ lạnh được kéo thẳng đều trên sàn nhà với lực kéo f=500N.Hệ số ma sát trượt giữa tủ lạnh và sàn nhà là 0,50.Hỏi khối lượng tủ lạnh là bao nhiêu? Lấy g=9,8 Giúp mình nhé🥰🥰

Bạn Toàn nhân một số với 2002 nhưng “đãng trí” quên viết 2 chữ số 0 của số 2002 nên kết quả “bị” giảm đi 3965940 đơn vị. Toàn đã định nhân số nào với 2002?

VII. Complete the sentences with the correct form of the verbs in brackets. 1. I (not be) ……………….. very happy yesterday. 2. I (buy) …………………. a ticket for the football match yesterday. 3. Kate (not know) ………………………. about the exam and she did very badly. 4. I went to the shop but I (not have) …………………. any money. 5. It (be) ……………………. a great film in 2010. 6. I (leave) ……………………. my school bag at school this morning. 7. Our teacher (tell) ……………………… us to be quiet yesterday. 8. The people in the café (not be) ………………….. friendly when I was there yesterday.

mọi người giúp e câu cuối dc ko ạ