\[
\boxed{
4\,{x}^{2}{\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left( x \right) +4\,{x}^{3}{\frac {\rm d}{{\rm d}x}}y \left( x \right) + \left( {x}^{2}+6 \right)  \left( {x}^{2}-4 \right) y \left( x \right) =0}
\]