\[ y'(x)=-\frac {1296 y(x)}{216 x^3-216 x^2 y(x)^4-324 x^2 y(x)^3-648 x^2 y(x)^2-648 x^2 y(x)+216 x^2-8 y(x)^{12}-36 y(x)^{11}-126 y(x)^{10}-315 y(x)^9+72 x y(x)^8-570 y(x)^8+216 x y(x)^7-846 y(x)^7+594 x y(x)^6-882 y(x)^6+1080 x y(x)^5-612 y(x)^5+1152 x y(x)^4-1944 y(x)^4+1080 x y(x)^3-1728 y(x)^3+216 x y(x)^2-2376 y(x)^2-432 x y(x)-1296 y(x)+216} \] ✓ Mathematica : cpu = 0.73691 (sec), leaf count = 1
\[\text {$\$$Aborted}\]
✓ Maple : cpu = 0.829 (sec), leaf count = 50
\[ \left \{ y \left ( x \right ) ={{\rm e}^{{\it RootOf} \left ( -{\it \_Z}-6\,\int ^{-1/3\, \left ( {{\rm e}^{{\it \_Z}}} \right ) ^{4}-1/2\, \left ( {{\rm e}^{{\it \_Z}}} \right ) ^{3}- \left ( {{\rm e}^{{\it \_Z}}} \right ) ^{2}+x-{{\rm e}^{{\it \_Z}}}}\! \left ( {{\it \_a}}^{3}+{{\it \_a}}^{2}+1 \right ) ^{-1}{d{\it \_a}}+{\it \_C1} \right ) }} \right \} \]