Question

Помогите решить уровнение. ​

Answer 1

$x^{2} =(\sqrt{6}+2\sqrt{5})^{2}-4\sqrt{30}\\\\x^{2}=(\sqrt{6})^{2}+2*\sqrt{6}*2\sqrt{5}+(2\sqrt{5})^{2}-4\sqrt{30}\\\\x^{2}=6+4\sqrt{30}+20-4\sqrt{30}\\\\x^{2} =26\\\\x_{1}=-\sqrt{26} \\\\x_{2}=\sqrt{26}$