Thực hiện các phép tính sau: a. y/x^2-xy + x/y^2-xy b. 1/x-1 - 5x-4/x^2-x c. x+1/x-2 . x^2-4/(x+1)^2

30d 2 câu toán ạ giúp với vote 5 sao và ctlhn

Vẽ Hanma Shuji (Tokyo Revengers) Đk:Đẹp nha,ko màu, ko phải chibi Đủ đk trên mình sẽ cho ctlhn,cảm ơn,vote 5*

Đặt câu hỏi cho.therefore,however,moreover,although,despite

giúp em với ạ e cảm ơn đề bài : tìm các số nguyên x , y biết :

Nhanh dùm ạ Chỉ cần sắp xếp :((((((((

Zn+H2SO4 -> .........+.........

giúp mình bài này ạ cảm ơn nhìu nhaa !!

1. I have to change my shoes. These (are killing/ kill) me. I’m sure I have a blister. 2. I feel lost. I’ve just finished a really good novel and now I (do not read/ am not reading) anything. 3. Coming to London for Christmas was a great idea. I (love/ am loving) it here. 4. The company (is moving/ moves) its offices to a bigger building next month. 5. John (gives/ is giving) a lecture on social media at university every Wednesday. You should come. 6. Sally (always interrupts/ is always interrupting) me when I speak. It’s so irritating. 7. Can you help me with this exercise or (are you being busy/ are you busy)? 8. I (hate/ am hating) people who never really listen to what you saỵ.

II. There is one mistake in each sentence. Underline and correct the mistake. 1. A lot of people are good artists and they are successful in life. 2. Music promote creativity, social development, and personality. 3. The Mona Lisa is a portrait painted by the Italian artist Leonardo da Vinci. 4. Your violin is the same with the one I’ve just bought. 5. My mother doesn’t like rock music and I don’t too. 6. The weather of Hong Kong is different from that of Canada’s. 7. How long do you go to the movies? - Twice a month. 8. The weather today is not so hot as it is yesterday. 9. They kept me in the dark. I didn’t knew anything about that robbery. 10. Yesterday class 2B has gone to the National Library.