\[ \int \frac {x^2}{\sqrt {4-x^2} \sqrt {2+3 x^2}} \, dx \]
Optimal antiderivative \[ \frac {\EllipticE \left (\frac {x}{2}, i \sqrt {6}\right ) \sqrt {2}}{3}-\frac {\EllipticF \left (\frac {x}{2}, i \sqrt {6}\right ) \sqrt {2}}{3} \]
command
integrate(x^2/(-x^2+4)^(1/2)/(3*x^2+2)^(1/2),x, algorithm="fricas")
Fricas 1.3.8 (sbcl 2.2.11.debian) via sagemath 9.6 output
\[ -\frac {\sqrt {3 \, x^{2} + 2} \sqrt {-x^{2} + 4}}{3 \, x} \]
Fricas 1.3.7 via sagemath 9.3 output
\[ {\rm integral}\left (-\frac {\sqrt {3 \, x^{2} + 2} \sqrt {-x^{2} + 4} x^{2}}{3 \, x^{4} - 10 \, x^{2} - 8}, x\right ) \]