Rút gọn rồi tính a, 3x + căn 16 -24x + 9x mũ 2 với x = -3 b, 5x - căn 4x mũ 2 +12x + 9 với x = - căn 5 ai giúp mình với ạ

Giúp mình với nha, cảm ơn nhiều

Correct the mistake 1, I has breakfast at 6:30 am. 2, My mother go to work at 6:30 am. 3, How many people is there in your city? 4, He is making his homework in his study room now. 5, What does Minh Has for dinner? 6, She is long black hair. 7, Ngoc is my friend . She have beautiful long black hair. 8, Physics are my favourite subject. 9, My father reading a newspaper at the moment. Ghi câu trả lời giúp mình vote cho 5 sao và cảm ơn

I'm very pleases you're going to visit me on Saturday. How will you get here? what time will you arrive? What shall we do? See you soon. Yours, Paul Write Paul a postcard. Answer his question. Write 25-35 words. Write your postcard on the answer sheet. Mọi người giúp mik với ạ

1.If you don't know how to __________ a word, look it up in your dictionary. A. spell B. understand C. mean D. learn 2.My favourite subject at school was __________ because I love learning about numbers. A. art B. history C. science D. mathematics 3.It's cold outside today you should take a __________ with you. A. sock B. belt C. scarf D. glove 4.I'd like to work __________ and learn about a different country. A. abroad B. strange C. foreign D. another 5.We had a very good football __________ last night. A. game B. kick C. play D. time 6.We must __________ the football match on TV this evening. A. look B. see C. listen D. watch 7.My video recorder isn't __________ . Could you repair it for me? A. going B. making C. doing D. working 8.Rome is the __________ city of Italy. A. big B. head C. lead D. capital 9.Mark __________ a lot of great photos on his holiday. A. did B. took C. put D. had 10.Could you __________ the situation to me again? A. explain B. talk C. tell D. excuse

Hãy phân tích ngữ pháp câu văn " Mẹ tôi cầm nón vẫy tôi, vài giây sau, tôi đuổi kịp."

Tập xác định của hàm số y=√(tanx-√3)???

Làm hộ mình với mình cảm ơn

giúp mình bài nào cũng được có vẽ hình nha thanks kiu vinamilk mấy bạn lm càng nhiều càng tốt tks

Giúp mình với ạ!!!mìng đg cần gấp