(2x+3)(2x-3) = 2x²- 3² = 4x² - 9

cảm ơn ạ

Question 85: ……………..fly a plane? A.  Would you like to          B.  Do you like           C.  You’d like D.  You would like Question 81: I…………..water. A. drink so many B. drink quite C. don’t drink many D. don’t drink much Question 80: Do you like…………………….? A. French food B. food French C. french food D. France food

Question 72: does/ English/ your/ where/ live/ teacher/? A. Where does your English Teacher live. B. Where does your English Teacher live? C. Where does your Teacher English live? D. Where does your Teacher English live. Question 75: Are cars…………..in Britain than in the USA? A. expensive B. most expensive C. more expensive D. the most expensive Question 81: I…………..water. A. drink so many B. drink quite C. don’t drink many D. don’t drink much