\[x^{3} - 144x\]
\[x\left( x^{2} - 144 \right) = 0\]
\[x(x - 12)(x + 12) = 0\]
\[x = 0;\ \ x = 12;\ \ x = - 12\]
\[Ответ:при\ x = 0;\ \ x = \pm 12.\]