cảm ơn

\(\frac{3-4\sqrt{3}}{\sqrt{6}-\sqrt{2}-\sqrt{5}}=\frac{\left(3-4\sqrt{3}\right)\left(\sqrt{6}+\sqrt{2}+\sqrt{5}\right)}{\left(\sqrt{6}-\sqrt{2}-\sqrt{5}\right)\left(\sqrt{6}+\sqrt{2}+\sqrt{5}\right)}=\frac{\left(3-4\sqrt{3}\right)\left(\sqrt{6}+\sqrt{2}+\sqrt{5}\right)}{-\left(1+2\sqrt{10}\right)}\)

quá hay luôn !!!!

hihihihi