\[ y'(x)=\frac {x^3+2 x^2-4 x y(x)-4 x-8}{2 x^2-8 y(x)+4 x-8} \] ✓ Mathematica : cpu = 0.0256316 (sec), leaf count = 36
\[\left \{\left \{y(x)\to \frac {1}{4} \left (x^2+2 x-4\right )+2 \left (1+W\left (-e^{-\frac {x}{4}-1+c_1}\right )\right )\right \}\right \}\] ✓ Maple : cpu = 0.209 (sec), leaf count = 26
\[ \left \{ y \left ( x \right ) ={\frac {{x}^{2}}{4}}+2\,{\it lambertW} \left ( 1/2\,{\it \_C1}\,{{\rm e}^{-x/4}}{{\rm e}^{-1/2}} \right ) +{\frac {x}{2}}+1 \right \} \]