Căn (1 -căn 5)^2 +căn6 +2 căn 5

Tính bằng cách thuận tiện nhất: A= 1 / 1x2x3 + 1/ 2x3x4 + 1/3x4x5 + .... + 1/36x37x38 + 1/37x38x39

TÁC DỤNG CỦA LỰC ĐÀN HỒI ẢNH HƯỞNG ĐẾN CUỘC SỐNG CHÚNG TA NHƯ NÀO???

Phân tích đa thức thành nhân tử: x^3-x+3x^2y+3xy^2-y^3

giúp mình với. mình đang cần gấp

giúp em câu nào trả lời giùm em câu đó ạ , tại em đang gấp Write the stress pattern for each following sentence. 1. Shut the door! 2. Get out! 3. Talk to me! 4. Stand up! 5. Don't enter! 6. Have fun! 7. Don't text me! 8. Be careful!

Giải thích cụ thể giúp mình nhaaa

Question IV. The passage below contains 7 mistakes. Recognize the mistakes and write their correct forms in your answer sheet. (7 pts) Almost children with healthy appetites are ready to eat anything that is to them and a child rarely dislikes food unless it is badly cooked. The way a meal is cooked and served is the most important and an served meal will often improve a child’s appetite. Never ask a child whether he likes or dislikes a food or never discuss likes or dislikes in front of him or never allow else to do so. If the father says he hates fat meat or the mother refuses vegetables within the child’s hearing, he is likely to copy this procedure. Take it for granted that he likes everything and he will. Nothing healthful should be omitted from the meal because of the dislike. At meal times, it is a good idea to a child a small portion and let him come back for a second helping ….

giúp em với ai nhanh nhất em cho hay nhất (chỉ cần đáp án và số câu thôi) cảm ơn mọi ng trước

( 2x-3 ) ( 5+x ) - ( x-2 ) ( 2x+1 )=3 Đề bài: Tìm x