user-avatar
quynhlenhu1303
2 năm trước
rút gọn các biểu thức sau một cách nhanh nhất a, A= (6x-2)^2+(2-5x)^2+2.(6x-2)(2-5x) b, B= (2a^2+2a+1)(2a^2-2a+1)-(2a^2+1)^2
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Write down the correct form of the word in brackets (adjective or adverb) Viết lại dạng đúng của từ trong ngoặc (tính từ hoặc trạng từ) 1. Ann is (slow) slow. She works slowlyViết lại dạng đúng của từ trong ngoặc (tính từ hoặc trạng từ) 2. She acted ...................... She´s an .............. actress. (excellent) 3. The girl looked ................ I went over to comfort her and she looked at me ...................... (sad) 4. The dog is ............................... It barks ............................. (angry) 5. I learned French ................................. I think French is an .................................language (easy) 6. Mary is a ......................... woman. She climbed up the ladder ................................. (careful) 7. My sister is playing with her toys ----------. ( happy ) 8. Sam is driving his car ----------. ( careless ) 9. I sing ----------. ( bad ) 10. She is having breakfast ----------. ( quick ) 11. The car passed ----------. ( fast ) 12. Susan played----------. ( wonderful ) 13. Karl wandered through the forest----------. ( desperate ) 14. He solved the questions ----------. ( easy ) 15. I waited for the bus ----------. ( hopeless ) 16. Henry shouted at Tom ----------. ( angry ) 17. Adam always behaves ----------. ( childish ) 18. My mother wanted me to study more----------. ( careful ) 19. The officer warned us to wait ------------. ( patient ) 20. Ben couldn’t explain himself ----------. ( clear ) 21. I opened the door ----------. ( quiet ) 22. Jane speaks French ----------. ( fluent)

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team