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brid1312
2 năm trước
Cho đa thức P(x) = 2x4 + x3 – 2x - 5x3 + 2x2 + x + 1 a) Thu gọn và sắp xếp đa thức theo lũy thừa giảm dần của biến ; b) Tính P(0) và P(1) . c) x = 1 và x =-1 có phải là nghiệm của đa thức P(x) hay không ? Vì sao ? GIÚP EM VS Ạ
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giúp tớ 2 bài này nhé bài 1: Điền từ còn thiếu It’s Sunday morning . The Browns are sitting in (1)……… living room. They are talking (2)…….. the dinner this evening. David likes beef and Susan does ,too. He says that beef (3)……..good for children. Their father, Mr. Brown , prefers chicken to beef . He asks his wife to buy (4)…….. for him . Helen , their youngest daughter doesn’t want any meat .She would (5)……….. cakes and sweets. Mrs. Brown doesn’t like beef and chicken. She likes fish, vegetables and fruit. She says that fish and vegetables (6)…………. good for old women and everybody (7)………. to eat fruit. At last they decide to go out (8)…….dinner (9)………..Mrs. Brown says that she can’t cook so(10)…………food for every body in the family. bài 2: đọc đoạn văn rồi trả lời câu hỏi Nhan and Huong want to know their friends’ favorite free time activities, so they are asking their friends about what they like to do in their free time. Many of their friends say that usually eat and drink as well as chat with their friends. They like to talk about many things around them: their teachers, their friends, their families as well as their favorite musicians, singers, soccer players and movie stars. There are some popular activities after lessons at their school such as: skipping rope, reading books and playing sports. At home, many of their friends say they like to watch TV, listen to music or play computer games. They rarely go to the movies. Some of the girls like to go shopping. Very few of their friends like to do English exercises on the Internet. Many of their friends don’t take part in art, music club. 1.What do many of Nhan and Huong’s friends usually do in free time? 2. What do their friends like to talk about?

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