Rút gọn biểu thức A= √9x ² - 2 (x<0)

giúp mn vs .......................

các cậu ơiiiii! vẽ hộ mik sơ đồ tư duy "Các phép tu từ" của lớp 7 nhé!(gồm liệt kê,chơi chữ và điệp ngữ) cần gấp nhaaaaa

giúp minh voi nha mng ( 50 điểm ạ )

Ex3: Complete each sentence with a suitable word. subjects - disagreed - hedge - dressed – laundry show - alarm clock - complicated - replace - factory 1. My house is surrounded by a green ___________. 2. All of my clothes are dirty. I must do ___________ now. 3. I get up at 06:30 every morning to have enough time to get ___________. 4. Yesterday my ___________ did not go off, so I was late for school. 5. There is a game ___________ at 08:00 tonight, I will try to finish my homework before it. 6. How many ___________ do you have at school? 7. Yesterday my father and I had a conflict because he ___________ to let me go out before 10 p.m. 8. My father is a worker. He works in the tobacco ___________ near here. 9. Do you think robots can ___________ people in the future? 10. I do not like Mathematics so much. The numbers and the formulas are so ___________. I prefer Literature.

Nhận xét gì về các mộng tưởng và thực tế? Thứ tự các mộng tưởng có hợp lí không? vì sao? (mà thật ra là ngữ văn bài cô bé bán diêm)

Ex2: Complete with suitable types of robots. space robot doctor robot home robot building robot teaching robot worker robot 1. ______________ do housework 2. ______________ educate children 3. ______________ taking care of people’s health 4. ______________ build types of construction works 5. ______________ explore the space 6. ______________ work in factory 7. ______________ work at schools or at home 8. ______________ work at home 9. ______________ work at hospital 10. ______________ work at construction site

giúp mk nha vote cho 5 sao liền làm đúng vào nha

Giải phương trình tanx + 2cotx - 3 = 0

Tính các giá trị biểu thức A, P= (4x -3)(4x+3)tại x=¼ B, Q= ( 3xy +x)(9y²-3xy x² ) tại x= 3và y=⅓