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