Bài 1: Cho dạng đúng của động từ trong ngoặc để hoàn thành câu điều kiện loại 1 và loại 2 dưới đây.

1. If I were you, I ________________ (learn) now.

2. Chuck _________________ (ask) us, we would lend him our books.

3. If they ___________ (be) at home, they will learn my words.

4. If Jack has a new DVD, he ___________ (lend) it to Cindy.

5. If you washed the car, he ___________ (get) more pocket money.

6. If you ___________ (come), you would meet them.

7. If we go to London, we ___________ (see) Buckingham Palace.

8. Jenny will help you if she ___________ (have) more time.

9. Sandy___________ (tell) him if she asked her.

10. I___________ (wash) my hands if he gives me a soap.

11. If the ghost passes through the door, she___________ (scream)

12. If we ___________ (swim) a lot, we would win the competition.

13. The Zongs will travel to the USA if they ___________ (win) in the lottery.

14. If you ___________ (run), you could catch the bus.

15. If Tessy has enough money, she ___________ (buy)

Giải bất phương trình

\(x^2+\left(x-1\right)\left(3-x\right)>0\)

Tìm x \(\left(\frac{1}{2}-\frac{1}{6}\right).3^x+3^{x+1}=3^{16}+3^{13}\)

C1: Cho M=( 1- \(\frac{4\sqrt{x}}{x-1}\) + \(\frac{1}{\sqrt{x-1}}\) ) : \(\frac{x-2\sqrt{x}}{x-1}\)

a, rút gọn M

b, tìm x để M = \(\frac{1}{2}\)

C2: giải phương trình

a, \(\sqrt{49x-98}-14\sqrt{\frac{x-2}{49}}=3\sqrt{x-2}+8\)

b, \(\sqrt{x+1}-\sqrt{x-2}=1\)

c, \(\sqrt{x^2+1}+\sqrt{4x^2-4x+5}=0\)