phân tích đa thức thành nhân tử = phương pháp đổi biến a,x^4+4x^2+3x+4 b,x^4-4x^2-5x-4 c,x^4-4x^2+5x-4 số điểm mà tôi có nhanhhhhhhhhhhhhhhhhhhhhhhhhh

Hãy nêu nguyên nhân và cách khắc phục tật cận thị?

Giải phương trình và bất phương trình:

Calli: Mầm ngại ☺️☺️☺️ Y/c: Digi !!! Nl: lần đầu hỏi môn nhạc hoạ ấy, xin cái hình đẹp đẹp làm avt cho acc chính 😍😍😍

BÀI TẬP VỀ SỰ HÒA HỢP CÁC THÌ ( SỐ 8) 1.This is the first time he has eaten this food. => He has never 2. I haven't eaten this kind of food before. =>This is the first 3. It's nearly 20 years since my father saw his brother. =>My father 4. The last time I went swimming was when I was in France. => I haven't 5. You haven't tided up this room for two weeks. => It's 6. Mr John hasn't visited France since 1990. => Mr John last 7. This is the most famous singer that I've ever met. => I have never 8. We last saw our grandfather two years ago . => We haven't 9.They last talked to each other two months ago. => They haven't 10. My father had watered all the plants in the garden by the time my mother came home. => Before

Đề bài : cảm nhận của em về câu nói của mẹ . Mình cần gấp

Giúp mình với vyd hjjj nhích đi t bbc

mai mk phải thi khảo sát đầu năm lớp 6 , mn vẽ cho mk cỏ bốn lá kèm theo chữ lucky (full màu ) bạn nào vẽ đệp hứa vote 5 sao và câu trả lời hay nhất <3

Giải giùm mk bài này vs ( mk đag cần gấp)

Giải thích ạ I. Choose the word, phrase or expression that best completes each sentence. 1. Most parents think chatting on the Internet is _______. A. time-saving B. waste time C. time-consuming D. consuming time 2. _________ the TV. There’s nothing interesting on. A. Turn on B. Turn off C. Turn up D. Turn down 3. She had a/an _________ fix the leaking pipe. A. plumber B. engineer C. consumer D. mechanic 4. Trang: "I passed the entrance exam into Le Hong Phong high school." Ngoc Anh: "________." A. Good luck B. Congratulations C. Thank goodness D. Ok 5. Most rivers_______ flow through the city are polluted. A. which B. who C. whom D. where 6. You should buy _________ before a typhoon because there may be a power cut. A. a ladder B. some canned food C. candles and matches D. drinks 7. My room _________ since I came back from London. A. is repainted B. has repainted C. repainted D. has been repainted 8. I like living in the countryside. It’s _______ living in a town. A. peaceful B. as peaceful C. more peaceful than D. so peaceful 9. He’s never been to England, __________? A. is he B. isn’t he C. has he D. hasn’t he 10. Nick: "It's a lovely day. Shall we go for a walk?" Tom: "________." A. No problem B. All right C. You're right D. You are welcome 11. Mike: “How do you do?” Long: “______________” A. How do you do? B. Not too bad. C. I’m well. Thank you. D. Yeah, OK. 12. They______ him if they would come there the day after. A. ask B. asked C. say D. said to 13. “How do you go to school every day” said Miss Hoa to me. A. Miss Hoa said to me how I went to school every day. B. Miss Hoa asked me how I go to school every day. C. Miss Hoa asked me how do I go to school every day. D. Miss Hoa asked me how I went to school every day. 14. He could not afford to buy that house. A. That house was cheap enough for him to buy. B. That house was too expensive for him to buy. C. That house was too expensive for him to buy it. D. He had enough money to buy that house. 15. Did people make jeans two hundred years ago? A. Were jeans made by people two hundred years ago? B. Were jeans make two hundred years ago? C. Was jeans made two hundred years ago? D. Were jeans made two hundred years ago?