\[
\boxed{
 \left( 2\,x-1 \right) {\frac {{\rm d}^{3}}{{\rm d}{x}^{3}}}y \left( x \right) -8\,x{\frac {\rm d}{{\rm d}x}}y \left( x \right) +8\,y \left( x \right) =0}
\]