\[ x^2 y^{(3)}(x)+6 x y''(x)+6 y'(x)=0 \] ✓ Mathematica : cpu = 0.0057978 (sec), leaf count = 24
DSolve[6*Derivative[1][y][x] + 6*x*Derivative[2][y][x] + x^2*Derivative[3][y][x] == 0,y[x],x]
\[\left \{\left \{y(x)\to -\frac {c_1}{2 x^2}-\frac {c_2}{x}+c_3\right \}\right \}\] ✓ Maple : cpu = 0.012 (sec), leaf count = 16
dsolve(x^2*diff(diff(diff(y(x),x),x),x)+6*x*diff(diff(y(x),x),x)+6*diff(y(x),x)=0,y(x))
\[y \left (x \right ) = c_{1}+\frac {c_{2}}{x}+\frac {c_{3}}{x^{2}}\]