Tính:

A = \(\sqrt{\dfrac{25}{3-2\sqrt{2}}}\)

B = \(\sqrt{\dfrac{a^4b^3}{a^2b-ab}}\left(a>1;b>0\right)\)

rewrite the sentences by using passive form

1. Who wrote this book?

=> __________________

2. How did they steal her car?

=> __________________

3. The children rang the bell a few minute ago.

=> __________________

4. The kids forgot the whole story in a few days.

=> __________________

5. Did the present make an important speech last night?

=> __________________

6. The police didnt question him very closely.

=> __________________

7. The wild animals killed two men yesterday.

=> __________________

(giải chi tiết)

Giải phương trình sau:

\(\sqrt{x-2}-\sqrt{x\left(x-2\right)}=0\)

khai phương các tích sau:

A = \(\sqrt{50a^5b^7}\) với (a, b > 0)

B = \(\sqrt{\dfrac{1}{4}\left(x-1\right)^2x^4}\)

Thực hiện các phép tính (không được ghi mỗi kết quả không, phải giải chi tiết)

A = \(2\sqrt{10}.3\sqrt{8}.2\)

B = \(\sqrt{20}\left(2\sqrt{3}-\sqrt{5}\right)\)

C = \(\left(2\sqrt{5}-3\right)\left(2\sqrt{5}+3\right)\)

Rút gọn các biểu thức sau:

D = \(\sqrt{9+4\sqrt{2}}-3\)

E = \(\sqrt{4+2\sqrt{3}}-\sqrt{13+4\sqrt{3}}\)

F = \(\sqrt{7-4\sqrt{3}}+\sqrt{4-2\sqrt{3}}\)