Câu 1: 1) làm tính nhân: 3xy(-x^2+3x-2y) 2)Tính Nhanh: 71^2-61^2 Câu 3: phân tích đa thức thành nhân tử a)6x^2+10x b)2x+2y+ax-ay c)x^2-2xy+y^2-9 GIÚP VỚI Ạ!

VI. Fill each gap in the passage with a suitable word . ( 3 points) Today many people in the world (1) ……… leaving their small villages (2) ……. the country for big and noisy cities. This means that they are (3)………the peaceful hills, mountains, fields and rivers of the countryside for the busy world of streets, buildings, traffic and crowds. In many (4) ….. people come to live in towns and cities (5) ……… they need (6) …………. After one or two factories have been built (7) …. or near a town, people come to find work and soon an (8) ……….. area begins to grow. (9) ……. is usually an area nearby where the factory workers live. The families of these workers need schools, hospitals and markets, so more and more people (10) …. to live in the area to provide these services- and so a city grows. VII. Read the passage and choose the correct answer (A or B, C, D) to fill in the gap(2, 5 points). It’s important for you to eat (1)_________, especially when you’re (2)_________. If you are at (3)_________, you may not go home for lunch, and have a cooked meal of meat or fish and vegetables. Or perhaps you take some food (4)_________you to school, and eat it in the lunch break . A chicken and a lettuce sandwich, with some fresh fruit, would be a light (5)__________healthy lunch. Many people (6)_________the world eat boiled rice twice or three times a day. Pupils and students often do not eat well when they are revising for (7)_________exam, they eat chocolate and drink lots of black coffee! By the way, doctors say everybody (8)________start the day with a healthy (9)________. It is also good for you to drink a lot of (10)________right through the day. 1. A. many B. good C. better D. well 2. A. to study B. study C. studying D. studies 3. A. primary B. school C. room D. office 4. A. with B. about C. to D. for 5. A. because B. so C. but D. and 6. A. for B. at C. with D. around 7. A. an B. lots C. all D. a 8. A. must B. should C. should not D. will 9. A. dinner B. lunch C. breakfast D. supper 10. A. coffee B. tea C. coke D. water helppppppppp mk đg trong thi nha

giải giúp mình bài 1 câu B , bài 2 câu B , bài 3 câu B , bài 4 câu B , bài 5 câu B , bài 6 câu B BẠN NÀO LÀM SAI ĐỀ BÀI MÌNH KO CHO SAO

There is a growing tendency among singers to _____ some famous singers. follow imitate reflect pursue 2. She made a big ________ about not having a window seat on the plane. complaint excitement interest fuss 3. We _______for an hour when finally the bus came. waited have waited had been waiting have been waiting 4. ______and interest are the two major factors that make you succeed. Friendliness Friendly Unfriendly Friendship 5. Shoppers complained _____ the lack of toilet facilities. with to about for 6. It’s only too easy for them _____ responsibility. to deny deny denying to denying 7. She watched the kids ______in the yard. to play played playing to be playing 8. We must listen to their problems, real or ______. imagine imaginative imagination imaginary 9. When we came to their house, they ______chess. are playing were playing plyed had played 10. I am pleased _____ that my leg has completely healed. saying to say say said 11. I wish he'd show me a little more ______. sympathize sympathetic sympathy sympathetically 12. PRONUNCIATION / ea / great steak break heat 13. PRONUNCIATION / ed / truned looked noticed washed 14. STRESS until embrace escape cotton 15. STRESS extreme affect realize replace 16. It can be embarrassed (A) for children to tell (B) complete (C) strangers about (D) such incidents. embarrassed to tell complete about 17. The police paid (A) no attention to Jane's complaint (B) because (C) she phoned (D) them many times before. paid complaint because phoned 18. He drove away. She stood there and watched. She stood there and watched him to drive away. She stood there and watched him drive away. He drove away and stood there and watched her. She stood there and watched her drove away. 19. I enjoyed going by train. It was safer. It was safer to enjoy going by train. It was safer going by train. It was safer to go by train. I enjoyed going by train so it was safer. 20. The woman was _____ from her burning home by firefighters. rescued escaped released screamed

Giải giúp mình nha gọn gọn thôi vote hay nhất cho nhanh nhất nhé

Đề: Phân tích đa thức thành nhân tử dùng pp hằng đẳng thức m ³ - 3m ²+ 3m -1 27a ³ - 27a ² +9a -1 5x ²+ 5xy -x-y ( dùng pp phối hợp các phương pháp) Nhanh lên nhé

61. They might postpone the excursion until Saturday. 62. They are going to announce the exam result tomorrow. 63. They ought to white-wash the building for the celebration. 64. You must attach a birth certificate to the application. 65. Does his company buy machines from Korea?

cho mạch điện như hình vẽ R1=8 ôm, R3=15 ôm Uab=12v .k đóng I=2A a.tính Rtđ và R2 b.hđt giữa hai đầu R1và R2

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