\[
\boxed{
 \left( {\frac {\rm d}{{\rm d}x}}y \left( x \right)  \right) \sum _{\nu=1}^{p}f_{{\nu}} \left( x \right)  \left( y \left( x \right)  \right) ^{\nu}-\sum _{\nu=1}^{q}g_{{\nu}} \left( x \right)  \left( y \left( x \right)  \right) ^{\nu}=0}
\]