\[ 2 y'(x)+4 x y''(x)-y(x)=0 \] ✓ Mathematica : cpu = 0.0080813 (sec), leaf count = 27
\[\left \{\left \{y(x)\to c_1 \cosh \left (\sqrt {x}\right )+i c_2 \sinh \left (\sqrt {x}\right )\right \}\right \}\] ✓ Maple : cpu = 0.037 (sec), leaf count = 17
\[ \left \{ y \left ( x \right ) ={\it \_C1}\,\sinh \left ( \sqrt {x} \right ) +{\it \_C2}\,\cosh \left ( \sqrt {x} \right ) \right \} \]