\[
\boxed{
{\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left( x \right) =-{\frac {bx{\frac {\rm d}{{\rm d}x}}y \left( x \right) }{ \left( {x}^{2}-1 \right) a}}-{\frac { \left( c{x}^{2}+dx+e \right) y \left( x \right) }{a \left( {x}^{2}-1 \right) ^{2}}}=0}
\]