Cho hai số y=2x^2-1 Tính f(-1) ; f(-2); f(0); f(1/2); f(-2/3) Làm giúp em bài này với ạ

Phân tích đa thức thành nhân tử bằng phương pháp xét nghiệm kết hợp phép chia đa thức a) x^3 - 8x^2 + 9x - 2 b) x^3 - 3x^2 + 4 Làm bằng nhiều cách nha

em cần gấp mọi người giúp em với

I. Shorten the sentences 1. I saw the girl whom you talked to yesterday. 2. The knife which you bought was really sharp. 3. The woman who teaches English at his school is Ms. Smith. 4. Some of the phones which were sold last month are broken. 5. He is the youngest person who won the prize. 6. This is the first tree which come out of the land. 7. The woman who has a white bag is my aunt. 8. The picture which is on the wall is beautiful. 9. The boy who is in the room is my brother. 10. We visited Barcelona, which is a city in northern Spain. II. Write the sentences with relative clauses 1. Football, a popular sport, is very good for health. 2. The girl sitting to you is my sister. 3. He is the last man to leave the ship. 4. The students punished by teacher are lazy. 5. Here is the laptop I bought. 6. The books written by Nam Cao are interesting. 7. My grandmother, old and sick, never goes out of the house. 8. I have many things to do. 9. The man injured in the accident has been left the hospital. 10. The houses lying on the bank of the river are beautiful.

Giải giùm tôi với yêuuu7uuu7uuuuu

Giải dùm mình vs ạ!Mình cảm ơn^^

giúp em với ạ viết một đoạn văn khoảng 10 dòng bám sát khổ thơ

Part 3. This passage contains 10 errors. Identify errors, underlined them and write the correct answers in each numbered place. Dear Mai, I am made plans for the summer holidays. I think I will have a lots of things to do, but first of all I will have a well rest after the axams and enjoy myself. I'm going to spend my holiday in the beach. I'm going to Vung Tau Beach and I'm staying there for about two week. My uncle lives there and I 'll saty with he. Now I'm getting everything ready with the holidays. I'm leaving last Monday by train. There is one starting at 4 pm. When I get there, my uncle will gets me up at the station. Hope to write to you soon and is able to tell you lots of interesting things. Love, Hoa 27. ………..………… 28. ………..……… 29. …………..… 30. ………..………… 31. ………..……… 32. …………..… 33. ………..………… 34. ………..……… 35. …………..… 36. ………..…………

Một nhà buôn có 5 đồng tiền vàng giống hệt nhau nhưng trong đó có 1 đồng tiền giả nhẹ hơn đồng tiền thật . Bằng cân hai đĩa . Em hãy hướng dẫn nhà buôn đó cách tìm ra đồng tiền vàng giả với số lần cân ít nhất .

Vẽ mầm ôm con cá ik :3 NL: Có phk là mk nên trưởng thành chút ko?!?! < chắc ko dou -.- >