Giải gấp giúp mình với nhé thanks

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a) (5x^3 – 7x^2 + x): 3xn ; b) (13x^4y^3 – 5x^3y^3 +6x^2y^2): 5x^ny^n

kể các biện pháp NTTT bài thơ đồng chí lớp 9 ạ

Câu 2: Hãy dùng từ hoặc cụm từ ( Giao chỉ, Vạn Xuân, Lâm Ấp, Cham Pa, Sin-ha-pu-ra) vào chỗ trống (….)sao cho đúng với đoạn trích nói về quá trình xây dựng nước Chăm Pa độc lập? Năm 192-193, Khu Liên lãnh đạo nhân dân (1)………………… nổi dậy giành quyền độc lập, đặt tên nước là (2)………………, sau đó đổi tên nước là (3)……………………, đóng đô ở (4)…………………….

IV. Complete the sentences with the correct form of the verb 16. We (go)…………………on holiday if there is time 17. If we (need)……………..some help, we will ask 18. She can (speak)…………………..English very well 19. Next year, my sister (be) ……………a teacher 20. Children shouldn’t (buy)………………….firework at Tet Holiday V. Each of the following sentences has one mistake. Identify and correct the mistakes 21. New York is an excited city with many skyscrapers ……………………… 22. I have been to the beaches in Nha Trang many time with my family ……………………… 23. Would you like go to the cinema tonight? ……………………… 24. I am the younger person in my family ……………………… 25. How long does Mr Ba travel to work?- He travels to work by car ……………………… VI. Complete the sentences using the comparatives and superlative form of adjectives 26. Skirts are ……………..dresses (cheap) 27. Her English is ……………..mine (good) 28. These houses are ………………in the village (beautiful) 29. Winter is ………………..season in the year (cold) 30. A bicycle is often ………..a car in busy cities (convenient)

1. Here are your photos. We _____________ at the photograher's. A. got them developed B. develop them C. got developed them D. got them develop 2.My son told me he tied his shoes by _ ________. A. him B. himself C. his D. his own 3.Sue __________ by the police all night. A. was being questioned B. was questioning C. is being questioned D. had questioned 4. Kev _________ into the tree if the brakes on his bike had been working. A. wouldn't crash B. won't crash C. won't have crashed D. wouldn't have crashed 5. Jack __________ last night. A. had stolen his wallet B. his wallet stolen C. had his wallet stolen D. had stolen his wallet 6.I'll lend you my car ______________ you promise to drive carefully. * A. as long as B. unless C. even if D. whether 7. If I _______________ a house like that, I'd look after it better. A. had owned B. have owned C. owned D. own 8. He got his brother _________ the dishes. * A. to wash B. wash C. washing D. to have washed 9.Don't go out by ___________ at night. It's dangerous. * A. myself B.yourself C. me D. her 10. I'll find you _________ you go. * A. whatever B. whichever C. whenever D. wherever 11. If you __________ the Lourve while in Paris, buy me a poster. A. visited B. should visit C. have visited 12. If I had installed an alarm, the thieves wouldn't __________ able to break into my house last week. A. be B. had been C. have been 13. If I _________ the job, I will take you out to dinner on Saturday to celebrate. * A. have got B. get C. got 14. I would make a film with Leonardo DiCaprio if I __________ a famous director, but I'm not. A. were B. had been C. will be 15. Karen ______________ for Athens tomorrow providing the weather is fine. A. will leave B. would leave C. had left

Đồng bằng Nam bộ do phù sa của sông nào bồi đắp? A. Sông Hồng và sông Mã. B. Sông Mê Công và sông Đồng Nai. C. Sông Sài Gòn và sông Đồng Nai.

chất nào thường sử dụng để điều trị trong y tế và thú y

Đốt 7,3 gam hốn hợp X gồm Na, Al trong bình chưa đầy khí O2, sau một thời gian thu được 8,9 gam hỗn hợp Y. Cho Y vào nước lấy dư, thu được 500 ml dung dịch A và 3,36 lít H2(đktc). a) tính khối lượng mỗi kim loại trong X. b) tính thể tích dung dịch HCl 0,5 mol tối thiểu cần dùng để phản ứng hết với dung dịch A.