18.4 Problem number 123

\[ \int \frac {x^3}{\log \left (c \left (a+b x^2\right )\right )} \, dx \]

Optimal antiderivative \[ \frac {\expIntegral \left (2 \ln \left (c \left (b \,x^{2}+a \right )\right )\right )}{2 b^{2} c^{2}}-\frac {a \logarithmicIntegral \left (c \left (b \,x^{2}+a \right )\right )}{2 b^{2} c} \]

command

int(x^3/ln(c*(b*x^2+a)),x,method=_RETURNVERBOSE)

Maple 2022.1 output

method result size
default \(\frac {-\expIntegral \left (1, -2 \ln \left (c \left (b \,x^{2}+a \right )\right )\right )+c a \expIntegral \left (1, -\ln \left (c \left (b \,x^{2}+a \right )\right )\right )}{2 c^{2} b^{2}}\) \(43\)
risch \(\frac {a \expIntegral \left (1, -\ln \left (c \left (b \,x^{2}+a \right )\right )\right )}{2 c \,b^{2}}-\frac {\expIntegral \left (1, -2 \ln \left (c \left (b \,x^{2}+a \right )\right )\right )}{2 c^{2} b^{2}}\) \(47\)

Maple 2021.1 output

\[ \int \frac {x^{3}}{\ln \left (\left (b \,x^{2}+a \right ) c \right )}\, dx \]________________________________________________________________________________________