$(x-2)(x^2+2x+4)-x(x-3)(x+3)$$=x^3-2^3-x(x^2-3^2)$$=x^3-8-x^3+9x$$=9x-8$Gửi bạn.
Đáp án+Giải thích các bước giải:
`(x-2)(x^2+2x+4)-x(x-3)(x+3)`
`=x^3-2^3-x(x^2-9)`
`=x^3-8-x^3+9x`
`=-8+9x`
Even though your time on the job is temporary, if you do a good enough job, your work there will last forever. - Idowu Koyenikan (Author of Wealth for All) Bạn hiểu thế nào về câu nói này ? Giúp mình với, chiều mình có bài nói mà bí idea quá ạ.
help meeeeeeeeeeeeeeeeeeeeeeeeee
Viết một đoạn văn diễn dịch khoảng 10-12 câu với câu chủ đề " Trong cuộc sống nếu chúng ta để mất niềm tin là mất tất cả "
Chỉ em bài này gấp ạ hứa cho 5 sao luôn
III. TRANSFORMATION: 1. The boys are very naughty. What a naughty boy! 2. The weather is awful today. How ! 3. This story is very interesting. What ! 4. These dresses are very lovely. How ! 5. What a lovely smile you have! How ! 6. He is strong. He can carry the box. He is 7. The weather isn’t warm. We couldn’t go swimming. The weather isn’t 8. His father is very poor. He can’t buy a big house. His father doesn’t have 9. The weather is very cold. They can’t have a picnic. The weather isn’t 10. This exercise is too difficult. He can’t do it. This exercise isn’t 11. I am very lucky because I have many good friends. I am lucky 12. The table is too heavy. The boy can’t lift it. The boy isn’t 13. The ceiling is too high. I can’t reach it. I am not 14. The book was so interesting that I read it twice. The book was 15. The essay is too long. He can’tfinish it in 15 minutes. He doesn’t have 16. He is not very tall. He can’t reach the booksheft. 17. The children couldn’t go swimming because the sea was very rough. The sea was 18. She couldn’t do this math exercise because it’s extremely difficult. This math exercise is 19. There are 45 students in our class. We only have 42 chairs in this room. We don’t have 20. You can’t put this book in your pocket because it is too big. This book isn’t 21. He studied very hard so he passed the entrance exam easily. He studied 22. She plays the piano skillfully. She will be the famous pianist one day. She plays the piano 23. Lan lives next to my house. Lan is 24. They spent two years building this house. It 25. It takes me two hours to do my homework every day. I 26. My friend’s hair is long, curly and black. My friend has 27. My sister‘s face is round, small and pink. My sister has 28. It’s a small and black box. It is made of metal. It is a 29. He gave me new and black gloves. They were made of leather. He gave me 30. My uncle lives in an old house, but it is very large and lovely. My uncle lives in giúp mik vs
c)Gọi B là tập hợp các số chẵn thuộc thuộc tập hợp A. Hãy viết tập hợp B theo hai cách.
1/ Tìm 4 từ ghép đẳng lập, 4 từ ghép chính phụ có thể miêu tả về quê hương, đồng lúa, mùa thu, cây cối Ai trả lời đc mình cho CTLHN +5 SAO !
sin (2x/3 - π/3) = 0 (giải rõ 1 chút ạ, e c.ơn)
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Bài 1: Một ô tô đang chạy với vận tốc 10m/s thì hãm phanh chuyển động chậm dần đều và khi đi thêm được 84m thì vận tốc còn 4m/s. a. Tính gia tốc của xe. b. Tính thời gian từ lúc hãm phanh đến khi đi được 75m
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến