Question

hộ mik vs

Answer 1

2:

a: \(=\dfrac{3\sqrt{3}+6\sqrt{3}-2\sqrt{3}}{\sqrt{3}}=3+6-2=7\)

b: \(=\dfrac{\sqrt{x}-3+5\sqrt{x}+15+6}{x-9}\cdot\dfrac{\sqrt{x}-3}{2}\)

\(=\dfrac{6\sqrt{x}+18}{\sqrt{x}+3}\cdot\dfrac{1}{2}=3\)