Integrand size = 18, antiderivative size = 138 \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=-\frac {a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p} \operatorname {ExpIntegralEi}\left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{2 b^2 p^2}+\frac {\left (a+b x^2\right )^2 \left (c \left (a+b x^2\right )^p\right )^{-2/p} \operatorname {ExpIntegralEi}\left (\frac {2 \log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{b^2 p^2}-\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )} \]
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Time = 0.13 (sec) , antiderivative size = 138, normalized size of antiderivative = 1.00, number of steps used = 13, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.444, Rules used = {2504, 2447, 2446, 2436, 2337, 2209, 2437, 2347} \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=\frac {\left (a+b x^2\right )^2 \left (c \left (a+b x^2\right )^p\right )^{-2/p} \operatorname {ExpIntegralEi}\left (\frac {2 \log \left (c \left (b x^2+a\right )^p\right )}{p}\right )}{b^2 p^2}-\frac {a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p} \operatorname {ExpIntegralEi}\left (\frac {\log \left (c \left (b x^2+a\right )^p\right )}{p}\right )}{2 b^2 p^2}-\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )} \]
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Rule 2209
Rule 2337
Rule 2347
Rule 2436
Rule 2437
Rule 2446
Rule 2447
Rule 2504
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {x}{\log ^2\left (c (a+b x)^p\right )} \, dx,x,x^2\right ) \\ & = -\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )}+\frac {\text {Subst}\left (\int \frac {x}{\log \left (c (a+b x)^p\right )} \, dx,x,x^2\right )}{p}+\frac {a \text {Subst}\left (\int \frac {1}{\log \left (c (a+b x)^p\right )} \, dx,x,x^2\right )}{2 b p} \\ & = -\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )}+\frac {\text {Subst}\left (\int \left (-\frac {a}{b \log \left (c (a+b x)^p\right )}+\frac {a+b x}{b \log \left (c (a+b x)^p\right )}\right ) \, dx,x,x^2\right )}{p}+\frac {a \text {Subst}\left (\int \frac {1}{\log \left (c x^p\right )} \, dx,x,a+b x^2\right )}{2 b^2 p} \\ & = -\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )}+\frac {\text {Subst}\left (\int \frac {a+b x}{\log \left (c (a+b x)^p\right )} \, dx,x,x^2\right )}{b p}-\frac {a \text {Subst}\left (\int \frac {1}{\log \left (c (a+b x)^p\right )} \, dx,x,x^2\right )}{b p}+\frac {\left (a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p}\right ) \text {Subst}\left (\int \frac {e^{\frac {x}{p}}}{x} \, dx,x,\log \left (c \left (a+b x^2\right )^p\right )\right )}{2 b^2 p^2} \\ & = \frac {a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p} \text {Ei}\left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{2 b^2 p^2}-\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )}+\frac {\text {Subst}\left (\int \frac {x}{\log \left (c x^p\right )} \, dx,x,a+b x^2\right )}{b^2 p}-\frac {a \text {Subst}\left (\int \frac {1}{\log \left (c x^p\right )} \, dx,x,a+b x^2\right )}{b^2 p} \\ & = \frac {a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p} \text {Ei}\left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{2 b^2 p^2}-\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )}+\frac {\left (\left (a+b x^2\right )^2 \left (c \left (a+b x^2\right )^p\right )^{-2/p}\right ) \text {Subst}\left (\int \frac {e^{\frac {2 x}{p}}}{x} \, dx,x,\log \left (c \left (a+b x^2\right )^p\right )\right )}{b^2 p^2}-\frac {\left (a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p}\right ) \text {Subst}\left (\int \frac {e^{\frac {x}{p}}}{x} \, dx,x,\log \left (c \left (a+b x^2\right )^p\right )\right )}{b^2 p^2} \\ & = -\frac {a \left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-1/p} \text {Ei}\left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{2 b^2 p^2}+\frac {\left (a+b x^2\right )^2 \left (c \left (a+b x^2\right )^p\right )^{-2/p} \text {Ei}\left (\frac {2 \log \left (c \left (a+b x^2\right )^p\right )}{p}\right )}{b^2 p^2}-\frac {x^2 \left (a+b x^2\right )}{2 b p \log \left (c \left (a+b x^2\right )^p\right )} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 157, normalized size of antiderivative = 1.14 \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=-\frac {\left (a+b x^2\right ) \left (c \left (a+b x^2\right )^p\right )^{-2/p} \left (b p x^2 \left (c \left (a+b x^2\right )^p\right )^{2/p}+a \left (c \left (a+b x^2\right )^p\right )^{\frac {1}{p}} \operatorname {ExpIntegralEi}\left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{p}\right ) \log \left (c \left (a+b x^2\right )^p\right )-2 \left (a+b x^2\right ) \operatorname {ExpIntegralEi}\left (\frac {2 \log \left (c \left (a+b x^2\right )^p\right )}{p}\right ) \log \left (c \left (a+b x^2\right )^p\right )\right )}{2 b^2 p^2 \log \left (c \left (a+b x^2\right )^p\right )} \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.85 (sec) , antiderivative size = 1487, normalized size of antiderivative = 10.78
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Time = 0.31 (sec) , antiderivative size = 141, normalized size of antiderivative = 1.02 \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=-\frac {{\left (a p \log \left (b x^{2} + a\right ) + a \log \left (c\right )\right )} c^{\left (\frac {1}{p}\right )} \operatorname {log\_integral}\left ({\left (b x^{2} + a\right )} c^{\left (\frac {1}{p}\right )}\right ) + {\left (b^{2} p x^{4} + a b p x^{2}\right )} c^{\frac {2}{p}} - 2 \, {\left (p \log \left (b x^{2} + a\right ) + \log \left (c\right )\right )} \operatorname {log\_integral}\left ({\left (b^{2} x^{4} + 2 \, a b x^{2} + a^{2}\right )} c^{\frac {2}{p}}\right )}{2 \, {\left (b^{2} p^{3} \log \left (b x^{2} + a\right ) + b^{2} p^{2} \log \left (c\right )\right )} c^{\frac {2}{p}}} \]
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\[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=\int \frac {x^{3}}{\log {\left (c \left (a + b x^{2}\right )^{p} \right )}^{2}}\, dx \]
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\[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=\int { \frac {x^{3}}{\log \left ({\left (b x^{2} + a\right )}^{p} c\right )^{2}} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 313 vs. \(2 (136) = 272\).
Time = 0.30 (sec) , antiderivative size = 313, normalized size of antiderivative = 2.27 \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=\frac {1}{2} \, a {\left (\frac {{\left (b x^{2} + a\right )} p}{b^{2} p^{3} \log \left (b x^{2} + a\right ) + b^{2} p^{2} \log \left (c\right )} - \frac {p {\rm Ei}\left (\frac {\log \left (c\right )}{p} + \log \left (b x^{2} + a\right )\right ) \log \left (b x^{2} + a\right )}{{\left (b^{2} p^{3} \log \left (b x^{2} + a\right ) + b^{2} p^{2} \log \left (c\right )\right )} c^{\left (\frac {1}{p}\right )}} - \frac {{\rm Ei}\left (\frac {\log \left (c\right )}{p} + \log \left (b x^{2} + a\right )\right ) \log \left (c\right )}{{\left (b^{2} p^{3} \log \left (b x^{2} + a\right ) + b^{2} p^{2} \log \left (c\right )\right )} c^{\left (\frac {1}{p}\right )}}\right )} - \frac {\frac {{\left (b x^{2} + a\right )}^{2} p}{b p^{3} \log \left (b x^{2} + a\right ) + b p^{2} \log \left (c\right )} - \frac {2 \, p {\rm Ei}\left (\frac {2 \, \log \left (c\right )}{p} + 2 \, \log \left (b x^{2} + a\right )\right ) \log \left (b x^{2} + a\right )}{{\left (b p^{3} \log \left (b x^{2} + a\right ) + b p^{2} \log \left (c\right )\right )} c^{\frac {2}{p}}} - \frac {2 \, {\rm Ei}\left (\frac {2 \, \log \left (c\right )}{p} + 2 \, \log \left (b x^{2} + a\right )\right ) \log \left (c\right )}{{\left (b p^{3} \log \left (b x^{2} + a\right ) + b p^{2} \log \left (c\right )\right )} c^{\frac {2}{p}}}}{2 \, b} \]
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Timed out. \[ \int \frac {x^3}{\log ^2\left (c \left (a+b x^2\right )^p\right )} \, dx=\int \frac {x^3}{{\ln \left (c\,{\left (b\,x^2+a\right )}^p\right )}^2} \,d x \]
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