23.20 Problem number 117

\[ \int \frac {1}{x^4 \left (a^2+2 a b x^3+b^2 x^6\right )^{5/2}} \, dx \]

Optimal antiderivative \[ -\frac {4 b}{3 a^{5} \sqrt {\left (b \,x^{3}+a \right )^{2}}}-\frac {b}{12 a^{2} \left (b \,x^{3}+a \right )^{3} \sqrt {\left (b \,x^{3}+a \right )^{2}}}-\frac {2 b}{9 a^{3} \left (b \,x^{3}+a \right )^{2} \sqrt {\left (b \,x^{3}+a \right )^{2}}}-\frac {b}{2 a^{4} \left (b \,x^{3}+a \right ) \sqrt {\left (b \,x^{3}+a \right )^{2}}}+\frac {-b \,x^{3}-a}{3 a^{5} x^{3} \sqrt {\left (b \,x^{3}+a \right )^{2}}}-\frac {5 b \left (b \,x^{3}+a \right ) \ln \left (x \right )}{a^{6} \sqrt {\left (b \,x^{3}+a \right )^{2}}}+\frac {5 b \left (b \,x^{3}+a \right ) \ln \left (b \,x^{3}+a \right )}{3 a^{6} \sqrt {\left (b \,x^{3}+a \right )^{2}}} \]

command

integrate(1/x^4/(b^2*x^6+2*a*b*x^3+a^2)^(5/2),x, algorithm="giac")

Giac 1.9.0-11 via sagemath 9.6 output

\[ \frac {5 \, b \log \left ({\left | b x^{3} + a \right |}\right )}{3 \, a^{6} \mathrm {sgn}\left (b x^{3} + a\right )} - \frac {5 \, b \log \left ({\left | x \right |}\right )}{a^{6} \mathrm {sgn}\left (b x^{3} + a\right )} + \frac {5 \, b x^{3} - a}{3 \, a^{6} x^{3} \mathrm {sgn}\left (b x^{3} + a\right )} - \frac {125 \, b^{5} x^{12} + 548 \, a b^{4} x^{9} + 912 \, a^{2} b^{3} x^{6} + 688 \, a^{3} b^{2} x^{3} + 202 \, a^{4} b}{36 \, {\left (b x^{3} + a\right )}^{4} a^{6} \mathrm {sgn}\left (b x^{3} + a\right )} \]

Giac 1.7.0 via sagemath 9.3 output

\[ \mathit {sage}_{0} x \]________________________________________________________________________________________