\[
\boxed{
{\frac {\rm d}{{\rm d}x}}y \left( x \right) ={\frac {14\,xy \left( x \right) +12+2\,x+{x}^{3} \left( y \left( x \right)  \right) ^{3}+6\,{x}^{2} \left( y \left( x \right)  \right) ^{2}}{{x}^{2} \left( xy \left( x \right) +2+x \right) }}=0}
\]