\[\sqrt[6]{x^{2} - 9} = \sqrt[6]{5x - 3}\]
\[x^{2} - 9 = 5x - 3\]
\[x^{2} - 5x - 6 = 0\]
\[x_{1} = 6;\ \ x_{2} = - 1.\]
\[Проверим.\]
\[x = 6:\]
\[\sqrt[6]{36 - 9} = \sqrt[6]{30 - 3}\]
\[\sqrt[6]{27} = \sqrt[6]{27}\]
\[x = 6 - корень\ уравнения.\]
\[x = - 1:\]
\[\sqrt[6]{1 - 9} = \sqrt[6]{- 5 - 3}\]
\[\sqrt[6]{- 8} = \sqrt[6]{- 8}\]
\[не\ существует.\]
\[Ответ:x = 6.\]