phân tích các đa thức sau thành nhân tử a, a^3+b^3-3a^2-3ab-3b^2 b, a^4+ab^3-a^3b-b^4 c, 9x^2-24xy+16y^2 d, x^2+2xy-2^2-2zt +y^2-t^2 e,12y-9x^2+36-3x^2y f, 4x^3+16x giúp e bài này vs ak

Cho Oz là tia phân giác của góc xOy. Chứng tỏ góc xOz=1/2 góc xOy Mk cần gấp lắm

1 người cao 1,7m niết mắt cách đỉnh đầu 10cm đứng trên bờ hồ, từ mặt đất đến mặt hồ cách nhau 1m a) Xác định vị trí ảnh của người đó b) Xác định KC từ đầu người đó đến ảnh

2tanx-2cotx=3 giải làm sao v ạ

Mỗi chỗ trống chỉ điền MỘT từ. Jean-Michael Basquitat, (51)____was born in New York in 1960, was the son of a Haitian father and a Puerto Rican mother. As a child he liked drawing pictures, and because they were good his mother encouraged his interest.(52)_____the age of 18 Basquiat left home and quit (53)_____just before he was due to graduate. He had nowherespecial to live. Sometimes he would sleep in a cardboard box in Thompkins Square Park. Sometimes he would stay with her friends. He played in a band, and started doing graffiti, tagging walls and subway cars (54)_____the signature ‘SAMO’. But he also painted –a curious mixture of words and images, of western art and the traditions of Haiti, Puerto Rico and Africa. It seemed (55)_______ many that he was searching for some kind of identity.Basquiat’s paintings were (56)____shown in a joint exhibition in 1980, and immediately people started to get interested –very interested. Soon he was surrounded by agents, gallery owners, journalists and other people who were desperate to make him famous and make money (57)_______of him. His name (58)____like widefire and everyone was talking about him. There were exhibitions of his work all over America. He dated the (not yet famous) pop star Madonna and became a great friend of Andy Warhol, (59)_____________of the giants of the New York art scene. In 1986 he went to the Ivory Coast of Africa. In 1988 he had simultaneous exhibitions

Hãy viết thân bài của bài văn biểu cảm về Cây phượng

1 Complete the dialogue with the correct from of the verbs in brackets. A.I went to Longman Beach last week.( you/ever be)............... to Longman Beach? B.Yes, I did. It's beautiful.( you/go).............. there on the weekend? A. Yeah, I did. I ( go)..............there on Sunday.I (get up)............ at 5 o' clock B. Oh ! I ( never get up)................at that time. It's so early A. I (get)....to the beach early enough to see the sunrise. ( you/ ever see)................. a sunrise? B. No, I haven't. I perfer sunsets to sunrise. A. Really? Then I ( go)..........swimming

You'll feel you want more independence and __________ (responsible) We need adult support and ________ to make informed decision and overcome stress (guide) She is no longer in her _________ (adolescent)

Trong mặt phẳng Oxy, cho đường thẳng d: x-5y+7=0 và đường thẳng d': 5x-y-13=0. Phép đối xứng trục biến d thành d' là?

Khi dịch cúm gia cầm diễn ra thì nên tiêu hủy đàn nào trong hệ thống nhân giống hình tháp? Giải thích?