\[
\boxed{
{\frac {\rm d}{{\rm d}x}}y \left( x \right) =1/4\,{\frac { \left( -2\, \left( y \left( x \right)  \right) ^{3/2}+3\,{{\rm e}^{x}} \right) ^{2}{{\rm e}^{x}}}{\sqrt {y \left( x \right) }}}=0}
\]