Question

Giúp em với ạ

 

Answer 1

\(\sqrt{\left(\sqrt{25}-\sqrt{3}\right)}+6+\sqrt{3}=\left|\sqrt{25}-\sqrt{3}\right|+6+\sqrt{3}=5-\sqrt{3}+6+\sqrt{3}=11\)

Answer 2

c) \(=\dfrac{\left(\sqrt{54}+\sqrt{2}\right)\left(\sqrt{3}-1\right)}{3-1}+\dfrac{4\left(\sqrt{6}+\sqrt{2}\right)}{6-2}\)

\(=\dfrac{9\sqrt{2}-3\sqrt{6}+\sqrt{6}-\sqrt{2}}{2}+\sqrt{6}+\sqrt{2}=4\sqrt{2}-\sqrt{6}+\sqrt{6}+\sqrt{2}=5\sqrt{2}\)