\[
\boxed{
2\, \left( {x}^{2}+1 \right)  \left( {\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left( x \right)  \right) ^{2}-x \left( {\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left( x \right)  \right)  \left( x+4\,{\frac {\rm d}{{\rm d}x}}y \left( x \right)  \right) +2\, \left( x+{\frac {\rm d}{{\rm d}x}}y \left( x \right)  \right) {\frac {\rm d}{{\rm d}x}}y \left( x \right) -2\,y \left( x \right) =0}
\]