\[
\boxed{
{\frac {\rm d}{{\rm d}x}}y \left( x \right) =-x/4+1+ \left( y \left( x \right)  \right) ^{2}+{\frac {7\,{x}^{2}y \left( x \right) }{16}}-1/2\,xy \left( x \right) +{\frac {5\,{x}^{4}}{128}}-{\frac {5\,{x}^{3}}{64}}+1/16\,{x}^{2}+ \left( y \left( x \right)  \right) ^{3}+3/8\,{x}^{2} \left( y \left( x \right)  \right) ^{2}-3/4\,x \left( y \left( x \right)  \right) ^{2}+{\frac {3\,y \left( x \right) {x}^{4}}{64}}-3/16\,{x}^{3}y \left( x \right) +{\frac {{x}^{6}}{512}}-{\frac {3\,{x}^{5}}{256}}=0}
\]