\[ \left (x^2+1\right ) y''(x)-x y'(x)+y(x)=0 \] ✓ Mathematica : cpu = 0.0204058 (sec), leaf count = 29
\[\left \{\left \{y(x)\to c_2 \left (x \sinh ^{-1}(x)-\sqrt {x^2+1}\right )+c_1 x\right \}\right \}\] ✓ Maple : cpu = 0.039 (sec), leaf count = 23
\[y \relax (x ) = -\sqrt {x^{2}+1}\, c_{2}+x \left (c_{2} \arcsinh \relax (x )+c_{1}\right )\]