Cho phương trình x^2+2(m+1)x+m^2+2=0. Tìm m để phương trình có 2 nghiệm phân biệt x1;x2

My gấp được số bông hoa là số nhỏ nhất có hai chữ số pha gấp được 1phần 2 số bông hoa của my

I. Fill ONE suitable word into each of numbered blanks in the passage. Australia is a big country, but nearly all Australians live near the sea. On hot summer days, you can see thousands of people at the beach. Many beaches have waves (1)______ are very high. These large waves are known as surf and the people who ride them are called surfers. Surfing is a skill, and it needs learning. Don’t (2)______ to be able to surf properly the (3)______ time you try. However, by practising a few times you will learn (4)______ to do it. Surfing is not a new sport. Perhaps its origins need explaining. It started hundreds (5)______ years ago in Hawaii. Men swam (6)______ to sea to catch fish and found they could come back to land very quickly by riding the waves. These first surfers did not (7)______ a board. They were “body surfers”. Many people (8)______ do this type of surfing today. After a while people started to use boards and rode the waves by lying, kneeling, or standing (9)______ them. These first surfboards were made of wood and the water made them rot after a while. Today, surfboards are made of plastic or fiberglass (10)______.

1 BÀI MÀ 60 ĐIỂM !!!!!!!!!!!!!!!!!!!!!!!

Rewrite the sentences with the same meanings. 26. “ Do you still live in Hanoi now?” Nam said to me. ---> Nam asked me_..... 27. Does your brother use the Internet every day? ---> Your brother___________________________________________________________________ 28. They will have to change the day of the meeting again. ---> The day _______________________________________________________________________ 29. The boy can’t speak to the visitors because he doesn’t know French. ---> The boy wishes _________________________________________________________________ 30. We no longer write to each other very often now. --> We used ______________________________________________________________________ 31. My parents have given me an interesting book. --> I ....................

A= ( -4 ;5 ] , B = ( 3; +∞) A ∩ B; A U B; A \ B; B \ A, R\A, R\B

1 BÀI MÀ 60 ĐIỂM !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Câu2-30 Bỏ những câu mình đã khoanh nha

1. I always run _____ of money before the end of the month. A. out B. back C. up D. down 2. It's taking me longer to get _____ the operation than I thought. A. through B. by C. up from D. over 3. I've just spent two weeks looking _____an aunt of mine who's been ill. A. at B. for C. out for D. after 4. I've always got _____ well with old people. A. off B. on C. in D. through 5. It's very cold in here. Do you mind if I turn _________ the heating? A. down B. away C. off D. on 6. Stephen always wanted to be an actor when he ________ up. A. came B. grew C. brought D. settled 7. The bus only stops here to ________ passengers. A. alight B. get on C. get off D. pick up 8. We had to turn _______ their invitation to lunch as we had a previous engagement. A. over B. out C. up D. down 9. While driving to work, we ran out____ gas. A. up B. of C. in D. to 10. Is this type of soil suitable ___ growing tomatoes ? A. for B. about C. in D. at

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