Bạn cute phô mai que gì đó ơi trả lời hộ mình nhá !!! Câu 1: Trong các biểu thức sau , biểu thức nào là đa thức ? A. 2x. B. 3x2yz. C. 7x2- 2x. D. xy . Câu 2 : Trong các biểu thức sau, biểu thức nào không phải là đa thức ? A. 2x + yz. B. 5y2z. C. xy3–7 . D. 4x2 + 3y2z. Câu 3 : Giá trị của đa thức A = x3– y3 tại x = 2 , y = –2 là?. A . 16 B . 8 C . 5 D . 0 . Câu 4 : Thu gọn đa thức P = 3xy– 2xy2 + 6x2y – 4x2y nhận được kết qủa là? A . P = x2y B . P = x2y +2xy2C . P = 5x2y – 2xy2 D . P = 5x2y + 2xy2 Câu 5 : Bậc của đa thức C = 5xy2 +2xz 3 là bao nhiêu ? A . 3 B . 4 C . 5 D . 6 . Câu 6 : Giá trị của đa thức B = 5x2y3– xy2 tại x = 2 , y = 1 là?. A . 13 B . 14 C . 15 D . 18 .

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1. Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. a. A: measure B: factor C: remind D: rickshaw b. A: suggestion B: embroider C: historic D: negative Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits blank. a. The pagoda has a rectangular shape and is 3 meters a side with bent roofs of ________ architecture of Vietnamese temples. A: astonished B: traditional C: different D: geographical b. The King was ________ happy that he decided to build a pagoda of lotus shape over water. A: too B: much C: such D: so c. An actual fact, not long later, the Queen ______ birth to a boy. A: made B: gave C: took D: did d. The One Pillar Pagoda, ________was built in 1049 in Ly Thai Tong dynasty, is in the Capital Ha Noi. A: which B: that C: where D: who e. The whole structure stands on a sole stone pillar, so it ______ one pillar pagoda. A: was called B: has called C: is called D: called 3. Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions. It was surprising for me _______ that she won the first prize. A: to hear B: hearing C: heard D: to be heard 4. Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. a. Gạch chân "ed" A: cleaned B: helped C: forced D: missed b. Gạch chân "o" A: complex B: dogsled C: geological D: tomb 5. Mark letter A, B, C or D on your answer sheet to indicate the best sentence that can be made from the cues given. Children / should have / special day / express / feeling / memories / /love/their parents. A: Children should have a special day express their feeling, memories and love for their parents. B: Children should have a special day expressing their feeling, memories and love to their parents. C: Children should have a special day to express their feeling, memories and love for their parents. D: Children should have a special day expressing their feeling, memories and love for thei rparents.