mọi người giúp mìnhhhhhhhhhhhhhhh

1. CHo x,y ∈ Q. Chứng tỏ rằng: a) |x+y| ≤ | x |+| y | b) |x-y| ≥ | x |-| y | | 2. Tìm giá trị nhỏ nhất của biểu thức: A=|x-2001| + |x-1|

15. Dogs are always faithful …………………. their masters but their masters are sometimes cruel …………….. them A. at; in B. on; by C. to; to D. with; for 16. I don't think that they'll be ……………….. favor of getting the money in the way. A. in B. on C. with D. of 17. While ………. to help Tim with his math, I got impatient because he wouldn't pay attention to what I was staying A l am trying B. having tried C. trying D. tried 18. "Did you tell Carol where ....... us this evening?" "Yes I did. I can't understand why she is late." A should she meet B. she to meet C. she meets D. to meet 19. "Did you enjoy the picnic?" "It was okey, but I'd rather ............. to a movie” A. go B. be going C. have gone D. went

Viết lại câu 37, this is the youngest girl i have ever seen i 38, this is the most intelligent student i have ever i have 39, this is the funniest story i have ever heard i have 40, my father telephoned me as soon as he arrived in HCM city no sooner

Viết lại câu 32, My father is having David write a composition. => My father is having 33, it is a two month course about E The couurse about E lats 34, I have never met such a beautiful girl than mary mary is 35, this is the most difficult work we have ever done we have 36, this is the easiest way to climb we have ever known we have

TALK ABOUT YOUR FAVORITE AND LEAST FAVORITE ANIMAL giải giúp đi

hôm qua mik có nói là mik đc vào BĐHH rồi , thì tự dưng có 1 bạn vào bảo mik điêu , còn bảo mik là ngáo đá xong có thêm bạn nữa vào cười . Mấy bạn nghĩ đó là vui nhưng mà mik k thấy vui mà thấy buồn , mik nói thật nhưng mn k tin vẽ anime buồn

Bµi 6. Tìm x, biết: a) (2x + 3)(x - 4) + (x - 5)(x - 2) = (3x - 5)(x - 4); b) (8x - 3)(3x + 2) - (4x + 7)(x + 4) = (2x + 1)(5x - 1); c) 2x² + 3(x - 1)(x + 1) = 5x(x + 1); d) (8 - 5x)((x + 2) + 4(x - 2)(x + 1) + (x - 2)(x + 2); e) 4(x - 1)( x + 5) - (x +2)(x + 5) = 3(x - 1)(x + 2)

(?)+6(?)x3 =63 (?)x6(?)-3=75 lưu ý : (?) là điền vào ô trống nha

Giúp em câu a thôi ạ Giải chi tiết, đầy đủ giúp em