Giúp iem vs ạ!!!!!!!!!!!!!!!!!!!

giúp mình với ạ.Cảm ơn mng nhiều

Phân tích các đa thức sau thành nhân tử 3x-6y x^2+6x+9 10x(x-y)-8y(x-y) x^3-2x^2+x xy^3-2x^2y^2+x^3y x(2x-7)-6x+21

Giúp mình điiiiiiiiiiiiiiiiiiiiiiiiii

Tìm x thuộc N, biết: (2x-1)^5=7^5

xác định dư của phép đa thức f(x)=x+x^3+x^27+x^81 cho x^2-1

giúp mình bài 14 với cảm ơn mng.

II. Choose the best answer to complete the following sentences. (4,0 pts) 1. Mr. Minh is a very ......... handicraftsman. He won the “Golden Hands” prize last year. A. skilless B. skillfully C. skillful D. skill 2. Are you interested ...... the traditions of different cultures? A. in B. at C. to D. for 3. South – East Asia has many .............. . A. attract B. attractive C. attraction D. attractions 4. I thought he was away on business in the USA, but ........ he appeared at my birthday party. A. surprises B. surprise C. surprisingly D. surprising 5. I would rather go jogging every morning ......... play tennis. A. to B. than C. more than D. more 6. Don’t let the children .......... with knives in the kitchen. They are very dangerous. A. play B. plays C. playing D. played 7. .......... spending our summer vacation in Da Lat? A. Let’s B. Why don’t C. Could we D. How about 8. They celebrated their wedding anniversary ....... 2nd December. A. at B. on C. in D. for 9. There are various kinds of fruit at this time of the year ............ as oranges, apples, bananas. A. like B. namely C. such D. so 10. Tom’ s uncle is very rich. He ...... a series of supermarkets all over the world. A. owns B. own C. owner D. possess 11. The hotel room costs 50USD per day and night ......... breakfast. A. include B. includes C. to include D. including 12. My younger brother is very athletic. He takes ........ in sports activities. A. action B. part C. place D. role 13. I .......... cooking to washing up in the winter. A. like B. would like C. prefer D. would prefer 14. Mary: As a journalist, I travel a lot and meet different kinds of people. – Tom: ................. A. That sound interesting C. That’ s a good idea. B. That sounds interesting D. That’ s interested. 15. She looks ........... today. Her son returned home from front yesterday. A. happy B. happily C. happiness D. unhappily 16. We got used to ........... on the left after living in England for a month. A. drive B. drives C. driving D. drove 17. She has a bad headache. I advise her to ............ some aspirin. A. eat B. have C. drink D. take 18. After each lesson we often have ............. rest. A. a ten - minutes B. a ten - minute C. a ten minute D. ten minutes 19. John Robinson is an English teacher from England. He .. for an apartment in Ha Noi for his family now. A. is looking B. is looking after C. looking up D. looks 20. I’ve got two daughters. Sophie is the younger one and Kathryn is the ........... one. A. old B. elder C. little D. youngest

a,6x-3 /5x^2 +x nhân 25x^2 +10x +1/ 1-8x^3 b,x^2-5x+6/x^2+7x+12 chia x^2-4x+4 /x^2+3x c,4a+6b/a-1 chia 4a^2 +12ab +9b^2/1-a^3 d,x^2+2x-3/x^2+3x-10 chia x^2 +7x+12/x^2-9x+14

Nguyễn Ái Quốc đã truyền bá chủ nghĩa Mác-Lênin, chuẩn bị các điều kiện thành lập đảng Cộng sản ở Việt Nam trong những năm 1921-1930 như thế nào? Sự kiện nào quan trọng nhất? vì sao?