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