\[ \int \frac {(e x)^{7/2} \left (A+B x^2\right )}{\left (a+b x^2\right )^{5/2}} \, dx \]
Optimal antiderivative \[ -\frac {\left (A b -3 B a \right ) e \left (e x \right )^{\frac {5}{2}}}{3 b^{2} \left (b \,x^{2}+a \right )^{\frac {3}{2}}}+\frac {2 B \left (e x \right )^{\frac {9}{2}}}{3 b e \left (b \,x^{2}+a \right )^{\frac {3}{2}}}-\frac {5 \left (A b -3 B a \right ) e^{3} \sqrt {e x}}{6 b^{3} \sqrt {b \,x^{2}+a}}+\frac {5 \left (A b -3 B a \right ) e^{\frac {7}{2}} \sqrt {\frac {\cos \left (4 \arctan \left (\frac {b^{\frac {1}{4}} \sqrt {e x}}{a^{\frac {1}{4}} \sqrt {e}}\right )\right )}{2}+\frac {1}{2}}\, \EllipticF \left (\sin \left (2 \arctan \left (\frac {b^{\frac {1}{4}} \sqrt {e x}}{a^{\frac {1}{4}} \sqrt {e}}\right )\right ), \frac {\sqrt {2}}{2}\right ) \left (\sqrt {a}+x \sqrt {b}\right ) \sqrt {\frac {b \,x^{2}+a}{\left (\sqrt {a}+x \sqrt {b}\right )^{2}}}}{12 \cos \left (2 \arctan \left (\frac {b^{\frac {1}{4}} \sqrt {e x}}{a^{\frac {1}{4}} \sqrt {e}}\right )\right ) a^{\frac {1}{4}} b^{\frac {13}{4}} \sqrt {b \,x^{2}+a}} \]
command
integrate((e*x)^(7/2)*(B*x^2+A)/(b*x^2+a)^(5/2),x, algorithm="fricas")
Fricas 1.3.8 (sbcl 2.2.11.debian) via sagemath 9.6 output
\[ -\frac {5 \, {\left ({\left (3 \, B a b^{2} - A b^{3}\right )} x^{4} + 3 \, B a^{3} - A a^{2} b + 2 \, {\left (3 \, B a^{2} b - A a b^{2}\right )} x^{2}\right )} \sqrt {b} e^{\frac {7}{2}} {\rm weierstrassPInverse}\left (-\frac {4 \, a}{b}, 0, x\right ) - {\left (4 \, B b^{3} x^{4} + 15 \, B a^{2} b - 5 \, A a b^{2} + 7 \, {\left (3 \, B a b^{2} - A b^{3}\right )} x^{2}\right )} \sqrt {b x^{2} + a} \sqrt {x} e^{\frac {7}{2}}}{6 \, {\left (b^{6} x^{4} + 2 \, a b^{5} x^{2} + a^{2} b^{4}\right )}} \]
Fricas 1.3.7 via sagemath 9.3 output
\[ {\rm integral}\left (\frac {{\left (B e^{3} x^{5} + A e^{3} x^{3}\right )} \sqrt {b x^{2} + a} \sqrt {e x}}{b^{3} x^{6} + 3 \, a b^{2} x^{4} + 3 \, a^{2} b x^{2} + a^{3}}, x\right ) \]