(x+3)^2-2(x+3).Phân tích đa thức thành nhân tử

Chứng minh hằng đẳng thức:x^3-y^3=(x-y)^3-3xy(x-y)

cho hỏi là : mấy cái lực T,Q,P là gì vậy và làm sao để biết được các lực đó

The sharing of a family's life stories can be thought provoking and..for children,helping them learn,formulate a sense of identity,and put their own experiences into perspective A.benefit. b.beneficial. c.beneficiary. d.benefits

1. they report that miss ly will win the beauty contestant 2. they announced that two prisoners from prison last week 3.they thought that i would take care of these children 4. people rumour that he will buy his villa 5.people believed that the earth was flat 6. they announced that a bank had just opened in this city 7. people said that many children died in a storm last year 8.people thought that these students were trying hard to win the competition 9.they say that his wife has ever fallen in love with many men 10. people supposed that he was rich 11. they reported the president would return from usa turn these sentences into passive voice two ways

Hộ mình bài VI. Đúng nha . mình cần gấp

Các bạn giúp mk với nhé. Nếu có thể thì để lại giải thích cho mk luôn nha🎋

* choose A,B,C,D for each gap in the following sentences 1. We........ in a house in the country A. Live B. Living C. Lives D. Are live 2. It't hot today. I don't want to stay at home. I want....... swimming. A. Go B. To go C. Going D. Goes 3. Listen! ....... he singing in the bathroom? A. Does B. Is C. Do D. Are 4. My mother likes......... our summer holidays at the seaside A. Spend B. Spends C. Spending D. Is spending 5. Wher are you, Hoa? - I'm downstairs. I......... to music A. To have B. Have C. Having D. Has 6. What do you usually......... for breafast? A. To share B. Share C. Sharing D. Shares 7. My close friend is ready ......... things with her classmates. A. To live B. Live C. Living D. Lived 8. Last year, I........ with my family in a big house in Tuyen Quang A. To live B. Live C. Living d. Lived 9. My friend, Nga is very hard-working. She......... most of her time at studying last year A. To spend B. Spends C. Spending D. Spent 10. This saturday we..... to Art Museum A. Go B. Is going C. Are going D. Went

Cho các số thực không âm thỏa mãn `ab+bc+ca>0,a+2b+3c=4` Tìm GTNN của `P=1/\sqrt{ab+bc+ca}+1/\sqrt{ab+bc+c^2}` Giúp em với ạ Nếu không có cách hay thì chăm làm Buffalo Way nhân ra hộ em cũng được ạ :(((

Có 8 gói kẹo cùng loại, do lỗi nhà sản xuất mà trong đó có 1 gói nhẹ hơn. Bằng chiếc cân hai đĩa cân, hãy tìm ra gói kẹo đó với phép cân ít nhất