\[ y'(x)=\frac {x \left (2 x^3-2 x y(x)+x-1\right )}{x^2-y(x)} \] ✓ Mathematica : cpu = 0.0246754 (sec), leaf count = 36
\[\left \{\left \{y(x)\to x^2+\frac {1}{2} \left (1+W\left (-e^{\frac {4 x^3}{3}-2 x^2-1+c_1}\right )\right )\right \}\right \}\] ✓ Maple : cpu = 0.246 (sec), leaf count = 29
\[ \left \{ y \left ( x \right ) ={x}^{2}+{\frac {1}{2}{\it lambertW} \left ( -2\,{\frac {{{\rm e}^{4/3\,{x}^{3}}}{\it \_C1}\,{{\rm e}^{-1}}}{ \left ( {{\rm e}^{{x}^{2}}} \right ) ^{2}}} \right ) }+{\frac {1}{2}} \right \} \]