\[ y'(x)^3-(x+5) y'(x)+y(x)=0 \] ✓ Mathematica : cpu = 0.0032365 (sec), leaf count = 20
\[\left \{\left \{y(x)\to c_1 x-c_1{}^3+5 c_1\right \}\right \}\] ✓ Maple : cpu = 0.047 (sec), leaf count = 44
\[y \relax (x ) = -\frac {2 \sqrt {3 x +15}\, \left (x +5\right )}{9}\]