\[ x^2+\left (y(x)^2-x\right ) y'(x)-y(x)=0 \] ✓ Mathematica : cpu = 16.1169 (sec), leaf count = 327
\[\left \{\left \{y(x)\to -\frac {3 \sqrt [3]{2} x}{\sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}-\frac {\sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}{3 \sqrt [3]{2}}\right \},\left \{y(x)\to \frac {3 \left (1+i \sqrt {3}\right ) x}{2^{2/3} \sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}+\frac {\left (1-i \sqrt {3}\right ) \sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}{6 \sqrt [3]{2}}\right \},\left \{y(x)\to \frac {3 \left (1-i \sqrt {3}\right ) x}{2^{2/3} \sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}+\frac {\left (1+i \sqrt {3}\right ) \sqrt [3]{\sqrt {\left (81 c_1+27 x^3\right ){}^2-2916 x^3}+81 c_1+27 x^3}}{6 \sqrt [3]{2}}\right \}\right \}\]
✓ Maple : cpu = 0.024 (sec), leaf count = 402
\[ \left \{ y \left ( x \right ) ={\frac {1}{2}\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}+2\,{\frac {x}{\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}},y \left ( x \right ) =-{\frac {1}{4}\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}-{x{\frac {1}{\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}}}-{\frac {i}{2}}\sqrt {3} \left ( {\frac {1}{2}\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}-2\,{\frac {x}{\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}} \right ) ,y \left ( x \right ) =-{\frac {1}{4}\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}-{x{\frac {1}{\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}}}+{\frac {i}{2}}\sqrt {3} \left ( {\frac {1}{2}\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}-2\,{\frac {x}{\sqrt [3]{-4\,{x}^{3}-12\,{\it \_C1}+4\,\sqrt {{x}^{6}+6\,{x}^{3}{\it \_C1}-4\,{x}^{3}+9\,{{\it \_C1}}^{2}}}}} \right ) \right \} \]