Cho phương trình x^2 -2x +m-1 Tìm m để phương trình có hai nghiệm phân biệt sao cho |x1-1|-|x2-1|+|x1.x2|=4 Giải hộ mk gấp

Giải giúp mình Nhanh mình vote 5☆

Giúp em cái ạ cảm ơn anh chị nhiều

(cho mình xin thêm câu giải thích nhé! cám ơn !) Read and complete the passage a.ealatives | b. top | c. preparations | d. holiday | e, put | f. are | g. although | h. bought Christmas is the biggest (1).................. of the year in most of britain . Celebrations start on 24 Decem,ber, christmas Eve (2)............. there have been several weeks of (3)............... beforehand. The christmas trees, presents, food, drink and decorations have been(4)................ . Christmas card have already been sent to friends and (5)............... . About a week before christmas , people usually (6)............ up their decorations and an angel on the (7) .............. of the christmas tree. Family presents (8).............. usually put under the tree.

Cho tam giác ABC có hai trung BD và CE biết BD<CE . CMR: góc DBC>ECB

Tim gia tri nho nhat cua(2x+1)/4canx

giải giúp mình câu c của bài 2 với

TÌM SỐ TỰ NHIÊN a NHỎ NHẤT SAO CHO KHI CHIA a CHO 6/7 VÀ CHIA a CHO 10/11 TA ĐỀU ĐƯỢC KẾT QUẢ LÀ SỐ TỰ NHIÊN

"As of 2003, the district has an estimated 'population' of 15,493 and a 'density' of 2,595.14 persons per km². The total area is 5.97 km²." nghĩa là gì?

(cho mình xin thêm câu giải thích cho mỗi câu nhé! cám ơn!) 13. Do you often send ............to your friends? A. greetings christmas ; B. greetings christmas ; C. christmas greeting ; D. christmas greetings 14. The report shows..... .........the rice-cooking festival was held A. what ; B. in what ; C. how ; D. which 15. She said that she ................ swimming in the sea in the fall A. has like ' B. likes ; C. liked ; D. was liking 16. The leader said that he ...................... to award the prize to you A. is pleasing ; B. was pleasing ; C. is pleased ; D. was pleased 17. Christmas songs ................ for people eight hundred years ago A. are performed ; B. performed ; C. perform ; D. were performed 18. He said that he would come to see me.............. A. the day next ; B. the following day ; C. the next day ; D. B or C 19. She asked me .............I enjoyed myself A. did ; B. if ; C. have ; D. do 20. The contest .............. since 2.00 p.m A. finished ; B. has finished ; C. has been finished ; D. was finished 21. He .............. late last week A. always gets up ; B. was always getting up ; C. was getting 22. We go out............... A. on christmas ; B. at christmas day ; C. in christmas ; D. on christmas day 23. The bicycle........... in Vietnam is very cheap A. making ; B. is made ; C. was made ; D. made 24. You should .............sure that you are good students A. do ; B. make ; C. be made ' D. be done