\[ \boxed { \left ( x \left ( y \left ( x \right ) \right ) ^{4}+2\,{x}^{2} \left ( y \left ( x \right ) \right ) ^{3}+2\,y \left ( x \right ) +x \right ) {\frac {\rm d}{{\rm d}x}}y \left ( x \right ) + \left ( y \left ( x \right ) \right ) ^{5}+y \left ( x \right ) =0} \]
Mathematica: cpu = 0.384549 (sec), leaf count = 669 \[ \left \{\left \{y(x)\to \frac {\sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}{3 \sqrt [3]{2} x}-\frac {\sqrt [3]{2} \left (-3 c_1 x^2-c_1^2\right )}{3 x \sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}+\frac {c_1}{3 x}\right \},\left \{y(x)\to -\frac {\left (1-i \sqrt {3}\right ) \sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}{6 \sqrt [3]{2} x}+\frac {\left (1+i \sqrt {3}\right ) \left (-3 c_1 x^2-c_1^2\right )}{3\ 2^{2/3} x \sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}+\frac {c_1}{3 x}\right \},\left \{y(x)\to -\frac {\left (1+i \sqrt {3}\right ) \sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}{6 \sqrt [3]{2} x}+\frac {\left (1-i \sqrt {3}\right ) \left (-3 c_1 x^2-c_1^2\right )}{3\ 2^{2/3} x \sqrt [3]{9 c_1^2 x^2+3 \sqrt {3} \sqrt {-4 c_1^3 x^6-c_1^4 x^4+18 c_1^2 x^4+4 c_1^3 x^2+27 x^4}+2 c_1^3+27 x^2}}+\frac {c_1}{3 x}\right \}\right \} \]
Maple: cpu = 0.156 (sec), leaf count = 583 \[ \left \{ y \left ( x \right ) ={\frac {1}{12\,{\it \_C1}\,x} \left ( \left ( -12\,i{x}^{2}{\it \_C1}-i \left ( 108\,{{\it \_C1}}^{3}{x}^{2}+ 12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{x}^{2}+18\,{{\it \_C1}}^{2}{x }^{2}+ \left ( 4\,{x}^{4}-4 \right ) {\it \_C1}-{x}^{2}}x{\it \_C1}+36\, {x}^{2}{\it \_C1}-8 \right ) ^{{\frac {2}{3}}}+4\,i \right ) \sqrt {3}+ 12\,{x}^{2}{\it \_C1}- \left ( \sqrt [3]{108\,{{\it \_C1}}^{3}{x}^{2}+ 12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{x}^{2}+18\,{{\it \_C1}}^{2}{x }^{2}+ \left ( 4\,{x}^{4}-4 \right ) {\it \_C1}-{x}^{2}}x{\it \_C1}+36\, {x}^{2}{\it \_C1}-8}+2 \right ) ^{2} \right ) {\frac {1}{\sqrt [3]{108\, {{\it \_C1}}^{3}{x}^{2}+12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{x}^{2 }+18\,{{\it \_C1}}^{2}{x}^{2}+ \left ( 4\,{x}^{4}-4 \right ) {\it \_C1}- {x}^{2}}x{\it \_C1}+36\,{x}^{2}{\it \_C1}-8}}}},y \left ( x \right ) ={ \frac {1}{12\,{\it \_C1}\,x} \left ( \left ( 12\,i{x}^{2}{\it \_C1}+i \left ( 108\,{{\it \_C1}}^{3}{x}^{2}+12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{x}^{2}+18\,{{\it \_C1}}^{2}{x}^{2}+ \left ( 4\,{x}^{4}-4 \right ) {\it \_C1}-{x}^{2}}x{\it \_C1}+36\,{x}^{2}{\it \_C1}-8 \right ) ^{{\frac {2}{3}}}-4\,i \right ) \sqrt {3}+12\,{x}^{2}{\it \_C1 }- \left ( \sqrt [3]{108\,{{\it \_C1}}^{3}{x}^{2}+12\,\sqrt {3}\sqrt { 27\,{{\it \_C1}}^{4}{x}^{2}+18\,{{\it \_C1}}^{2}{x}^{2}+ \left ( 4\,{x} ^{4}-4 \right ) {\it \_C1}-{x}^{2}}x{\it \_C1}+36\,{x}^{2}{\it \_C1}-8} +2 \right ) ^{2} \right ) {\frac {1}{\sqrt [3]{108\,{{\it \_C1}}^{3}{x}^ {2}+12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{x}^{2}+18\,{{\it \_C1}}^{ 2}{x}^{2}+ \left ( 4\,{x}^{4}-4 \right ) {\it \_C1}-{x}^{2}}x{\it \_C1}+ 36\,{x}^{2}{\it \_C1}-8}}}},y \left ( x \right ) ={\frac {1}{6\,{\it \_C1}\,x}\sqrt [3]{108\,{{\it \_C1}}^{3}{x}^{2}+12\,\sqrt {3}\sqrt {27 \,{{\it \_C1}}^{4}{x}^{2}+4\,{\it \_C1}\,{x}^{4}+18\,{{\it \_C1}}^{2}{ x}^{2}-{x}^{2}-4\,{\it \_C1}}x{\it \_C1}+36\,{x}^{2}{\it \_C1}-8}}-{ \frac {6\,{x}^{2}{\it \_C1}-2}{3\,{\it \_C1}\,x}{\frac {1}{\sqrt [3]{ 108\,{{\it \_C1}}^{3}{x}^{2}+12\,\sqrt {3}\sqrt {27\,{{\it \_C1}}^{4}{ x}^{2}+4\,{\it \_C1}\,{x}^{4}+18\,{{\it \_C1}}^{2}{x}^{2}-{x}^{2}-4\,{ \it \_C1}}x{\it \_C1}+36\,{x}^{2}{\it \_C1}-8}}}}-{\frac {1}{3\,{\it \_C1}\,x}} \right \} \]