Phân tích đa thức sau thành nhân tử.4x^2-y^2-2y-1

nêu những lời nói,suy nghĩ , việc làm của từng nv trong truyện lặng lẽ sapa

Rewrite the foollowing sentence 1 he drives carelessly . His mother worries about him » If ..... 2 "he broke into this house with a gun last night" _ reported the witnesses » the witnesses reported that ..... 3 I regerted going to the cinema yesterday » If only ..... 4 "have you ever tried Cappuccino before " Will asked Louisa » will asked Louisa if ...... 5 in spite of his high - paying job he's not satisfied with his life » Although .....

Tại sao bài này AB lại bằng 1,5m. Đề bảo từ mắt người đó đến mặt đất là 1,5 m. Chưa không pahir AB=1,5m tại sao khi giải người ta choAb =1,5m

4. Choose the correct answer. 1. Was Tom there when you arrived?” - “Yes, but he home soon afterwards.” A. goes B. went C. had gone D. were going 2. Before Jennifer won the lottery, she any kind of contest. A. hasn’t entered B. doesn’t entered C. wasn’t entering D. hadn’t entered 3. “Who was the woman in red dress? Did you know?” - “No, I who she was. I her before.” A. didn’t know - hadn’t seen B. didn’t know - hasn’t seen C. hadn’t known - hadn’t seen D. don’t know - hasn’t seen 4. It’s two years Joe. A. that I don’t see B. that I haven’t seen C. since I didn’t see D. since I saw 5. The man sitting next to me on the plane was nervous because he before. A. hasn’t flown B. didn’t fly C. hadn’t flown D. wasn’t flying 6. They in Scotland for ten years. Now they live in London. A. lived B. have lived C. has been living D. had lived 7. As soon as Laura the house, it started to rain. A. has left B. was leaving C. had left D. had been leaving 8. Sorry we’re late, we the wrong turning. A. had taken B. were talking C. took D. are talking 9. We in New York for ten years and then we here in 1987 A. have lived - moved B. lived - moved C. lived - had moved D. had lived – moved 10. When Martin the car, he took it out for a drive. A. had repaired B. has repaired C. repaired D. was repairing 11. We them before the reception yesterday. A. haven’t met B. hadn’t met C. didn’t meet D. wouldn’t meet 12. Karen didn’t want to come to the cinema with us because she the film. A. has already seen B already had seen C. had already seen D. saw 13. The man looked familiar. I him somewhere before. A. saw B. have seen C. had seen D. see 14. Last night a tornado swept through Rockville. It everything in its path. A. destroyed B. was destroyed C. had destroyed D. has destroyed 15. When we the bill, we left the restaurant A. had paid B. were paying C. paid D. had been paid

Viết đa thức sau dưới dạng hằng đẳng thức tương ứng : x³² - 1

Thực hiện phép tính và rút gọn các biểu thức sau B= √48 + √5+1/3 + 2√35 - 5√1+1/3

7. John expected…………………………………at the airport by his wife. a. to meet b. meeting c. being met d. to be met 8.Didn’t you notice anything ……………….…………in his behaviour ? a. suspiciously b. suspicious c. suspicion d. suspect 9. I think that pop star is the …………………….……of countless teenagers. a. image b. figure c. sample d. idol 10. My teacher only had time to …………….………..at the newspapers. a. read b.stare c. glance d. work 11. They held a concert to mark the …………………….of John Lennon’s death. a. occasion b. anniversary c. situation d. ceremony 12. My parents wouldn't ………………………………. to the party. a. allow me to go b. allow me go c. allow me going d. allow to go 13. By the time my father was forty, he ………………………a million pounds. a. had made b. makes c. is making d. make 14. I heard him ……..the house early this morning. a. left b.leave c. leaves d. is leaving 15. She...............................in a bank since she......................................school. a. has worked - left b. had been working - left c. worked - has left d. worked – left 16. A.Why do you call your son Hugo ? B. He wants ……….……. by that name. a. to be called b. to call c. to be calling d. being called dạ giúp em vs ạ, em cảm ơn

Nhờ mn giúp e vs ạ, em cần gấp (Hứa sẽ đánh giá 5* và cảm ơn ạ)

Chi tiết ạaaaaaaaaaaaaaaaaaaaaaaa tìm 2n