2/5 x 3/4 x 5/6 x 3/4 anh chị làm tính bằng cách thuận tiện nha

Rút gọn : P = $\frac{2}{√x-1}$ + $\frac{3}{√x+1}$ - $\frac{3√x+1}{x-1}$

Find the mistake in the following sentence. Her son has lost his way on his way home yesterday. A. Home B. Her C. His D. has lost 2 Choose the best answer to complete the sentence. Nowadays young people spend most of their time ______ computer games. A. to play B. Playing C. Play D. Played 3 Choose the best answer to complete the sentence. People can help the homeless and the poor in many ______. A. Streets B. Food C. Ways D. Things 4 Choose the word whose underlined part differs from the other three in pronunciation in the following ones. A. Bread B. Great C. Instead D. Spread 5 Choose the best answer to complete the sentence. France is the most ______ country to visit. It has about 76 million visitors a year. A. Popular B. Visiting C. Expensive D. Relaxing 6 Find one word which does not belong to each group. A. Provide B. Money C. Blood D. Food 7 Choose the best answer to complete the sentence. _______ up the tree. You’ll fall down. A. Don’t B. Not to play C. Climbing D. Climb 8 Read the following passage and choose the best option for number 22 . SINGAPORE Singapore is an island city of about three million people. It"s a beautiful (15) ...... with lots of parks and open spaces. It"s also a very (16) ... city. Most of the people (17) ... in high rise flats in different parts of the island. The business district is very modern with (18) ..... of high new office buildings. Singapore also has some nice older sections. In China town, there (19) ..... rows of old shop houses. The Government buildings in Singapore are very (20)......... and date from the colonial days. Singapore is famous (21)...... its shops and restaurants. There are many good shopping centers. Most of the (22) ...are duty free. Singapore"s restaurants sell Chinese, Indian, Malay and European food, and the prices are quite reasonable. A. Goody B. Goods

IV. Identify ONE mistake in each sentence, underline and correct it. 1. Do you have less English books than Nga? 2. Do you like to cook in your free time? ______________ 3. I didn’t watched the film on TV last night. ______________ 4. You had better to stay in bed for several days. ______________ 5. Why do you afraid of swimming in the sea? _____________ 6. She looks very sadly today because she has just got a bad mark in English. _____________ 7. Would you like having something to drink now? _____________ 8. He ate fewer soup than me. _____________ 9. Did you not buy anything when you were on holiday? _____________ 10. She can to play the piano very nicely. _____________ 11. Students have go to school on time. _____________ 12. I have many money, so I can buy what I want. _____________ 13. When my mother is away from home I have to look at my younger sister. _____________ 14. My father is not a doctor, and so is my mother. _____________ 15. What is your weight?- I’m 1.65m tall. ___________

Làm + Giải thích giúp mik với, mik đang cần gấp

1. If/ she/ work hard/ she/ have/ enough money / make ends meet. 2. He/ usually/ get embarrassed/ if he/ make a mistake/ when speaking English. 3. It/ not matter/ if/ some of you/ come/ late. 4. When/ Mary/ listen to classical music/ she/ always/ feel happy. 5. My dog/ sit down/ when/ I/ say 'sit'. 6. If/ son/ study hard/ he/ usually/ get/ good grades/ school. 7. Ben/ often/ play loud music/ if/ he/ be/ at home alone. 8. If/ you/ sit/ in the sun for too long/ you/ get burned. 9. If/ it/ war film/ may/ quite violent. 10. If/ you/ write down/ pin number/ someone/ may/ use/ it.

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Mọi người giúp em giải bài tập này với ạ!!

Phân tích đa thức thành nhân tử X ² - 14x + 13

Chiều nay nộp r, giúp toi vs, please