Giúp mik với.....

1. Viết tổng thành tích a) 8x³+12x²+6x+1 b) 8y³-12x²+6x-1 c) 27y³-54y²x+36x²-8x³

Cho ∆ABC cân A , đường phân giác BD và CE cắt tại I a) CM:∆BIC cân b) CM: DEBC là hình thang cân c) CM:DE=DC

30405-2340=28095

12340+3405=15745

5632+64168=79800

Chuyển sang bị động 11. Have you sent the Christmas cards to your family? 12. The committee appointed Alice secretary for the meeting. 13. He hides the broken cup in the drawer. 14. They keep this room tidy all the time. 15. They voted the party a great success. 16. We gave Ann some bananas and some flowers. 17. They moved the fridge into the living room. 18. She bought some cups of tea to the visitors in the next room. 19. They find the new project worthless. 20. The secretary didn’t take the note to the manager. 21. My father waters this flower every morning. 22. John invited Fiona to his birthday party last night. 23. Her mother is preparing the dinner in the kitchen. 24. We should clean our teeth twice a day. 25. Our teachers have explained the English grammar. 26. Some drunk drivers caused the accident in this city. 27. Tom will visit his parents next month. 28. The manager didn’t phone the secretary this morning. 29. Did Mary buy this beautiful dress? 30. I won’t hang these old pictures in the living room.

Gia đình là s1<=>= sự ưu tiên k thể nói gđ là sự lựa chọn đc=>k cs sự lựa chọn nào đối vs gđ nếu bắt buộc cx k thể coi gđ là sự lựa chọn đc:) vs mik cả 2 đều quan trọng

Park là công viên mà trên là pank-pank là j???