Integrand size = 18, antiderivative size = 86 \[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\frac {2 e p \log \left (-\frac {e x^3}{d}\right ) \log \left (c \left (d+e x^3\right )^p\right )}{3 d}-\frac {\left (d+e x^3\right ) \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d x^3}+\frac {2 e p^2 \operatorname {PolyLog}\left (2,1+\frac {e x^3}{d}\right )}{3 d} \]
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Time = 0.07 (sec) , antiderivative size = 86, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {2504, 2444, 2441, 2352} \[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=-\frac {\left (d+e x^3\right ) \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d x^3}+\frac {2 e p \log \left (-\frac {e x^3}{d}\right ) \log \left (c \left (d+e x^3\right )^p\right )}{3 d}+\frac {2 e p^2 \operatorname {PolyLog}\left (2,\frac {e x^3}{d}+1\right )}{3 d} \]
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Rule 2352
Rule 2441
Rule 2444
Rule 2504
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \text {Subst}\left (\int \frac {\log ^2\left (c (d+e x)^p\right )}{x^2} \, dx,x,x^3\right ) \\ & = -\frac {\left (d+e x^3\right ) \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d x^3}+\frac {(2 e p) \text {Subst}\left (\int \frac {\log \left (c (d+e x)^p\right )}{x} \, dx,x,x^3\right )}{3 d} \\ & = \frac {2 e p \log \left (-\frac {e x^3}{d}\right ) \log \left (c \left (d+e x^3\right )^p\right )}{3 d}-\frac {\left (d+e x^3\right ) \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d x^3}-\frac {\left (2 e^2 p^2\right ) \text {Subst}\left (\int \frac {\log \left (-\frac {e x}{d}\right )}{d+e x} \, dx,x,x^3\right )}{3 d} \\ & = \frac {2 e p \log \left (-\frac {e x^3}{d}\right ) \log \left (c \left (d+e x^3\right )^p\right )}{3 d}-\frac {\left (d+e x^3\right ) \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d x^3}+\frac {2 e p^2 \text {Li}_2\left (1+\frac {e x^3}{d}\right )}{3 d} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 99, normalized size of antiderivative = 1.15 \[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\frac {2 e p \log \left (-\frac {e x^3}{d}\right ) \log \left (c \left (d+e x^3\right )^p\right )}{3 d}-\frac {e \log ^2\left (c \left (d+e x^3\right )^p\right )}{3 d}-\frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{3 x^3}+\frac {2 e p^2 \operatorname {PolyLog}\left (2,\frac {d+e x^3}{d}\right )}{3 d} \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.82 (sec) , antiderivative size = 411, normalized size of antiderivative = 4.78
method | result | size |
risch | \(-\frac {{\ln \left (\left (e \,x^{3}+d \right )^{p}\right )}^{2}}{3 x^{3}}+\frac {2 p e \ln \left (\left (e \,x^{3}+d \right )^{p}\right ) \ln \left (x \right )}{d}-\frac {2 p e \ln \left (\left (e \,x^{3}+d \right )^{p}\right ) \ln \left (e \,x^{3}+d \right )}{3 d}-\frac {2 p^{2} e \left (\munderset {\textit {\_R1} =\operatorname {RootOf}\left (\textit {\_Z}^{3} e +d \right )}{\sum }\left (\ln \left (x \right ) \ln \left (\frac {\textit {\_R1} -x}{\textit {\_R1}}\right )+\operatorname {dilog}\left (\frac {\textit {\_R1} -x}{\textit {\_R1}}\right )\right )\right )}{d}+\frac {p^{2} e \ln \left (e \,x^{3}+d \right )^{2}}{3 d}+\left (i \pi \,\operatorname {csgn}\left (i \left (e \,x^{3}+d \right )^{p}\right ) {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{2}-i \pi \,\operatorname {csgn}\left (i \left (e \,x^{3}+d \right )^{p}\right ) \operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right ) \operatorname {csgn}\left (i c \right )-i \pi {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{3}+i \pi {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{2} \operatorname {csgn}\left (i c \right )+2 \ln \left (c \right )\right ) \left (-\frac {\ln \left (\left (e \,x^{3}+d \right )^{p}\right )}{3 x^{3}}+p e \left (\frac {\ln \left (x \right )}{d}-\frac {\ln \left (e \,x^{3}+d \right )}{3 d}\right )\right )-\frac {{\left (i \pi \,\operatorname {csgn}\left (i \left (e \,x^{3}+d \right )^{p}\right ) {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{2}-i \pi \,\operatorname {csgn}\left (i \left (e \,x^{3}+d \right )^{p}\right ) \operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right ) \operatorname {csgn}\left (i c \right )-i \pi {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{3}+i \pi {\operatorname {csgn}\left (i c \left (e \,x^{3}+d \right )^{p}\right )}^{2} \operatorname {csgn}\left (i c \right )+2 \ln \left (c \right )\right )}^{2}}{12 x^{3}}\) | \(411\) |
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\[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\int { \frac {\log \left ({\left (e x^{3} + d\right )}^{p} c\right )^{2}}{x^{4}} \,d x } \]
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\[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\int \frac {\log {\left (c \left (d + e x^{3}\right )^{p} \right )}^{2}}{x^{4}}\, dx \]
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Time = 0.19 (sec) , antiderivative size = 118, normalized size of antiderivative = 1.37 \[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\frac {1}{3} \, e^{2} p^{2} {\left (\frac {\log \left (e x^{3} + d\right )^{2}}{d e} - \frac {2 \, {\left (3 \, \log \left (\frac {e x^{3}}{d} + 1\right ) \log \left (x\right ) + {\rm Li}_2\left (-\frac {e x^{3}}{d}\right )\right )}}{d e}\right )} - \frac {2}{3} \, e p {\left (\frac {\log \left (e x^{3} + d\right )}{d} - \frac {\log \left (x^{3}\right )}{d}\right )} \log \left ({\left (e x^{3} + d\right )}^{p} c\right ) - \frac {\log \left ({\left (e x^{3} + d\right )}^{p} c\right )^{2}}{3 \, x^{3}} \]
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\[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\int { \frac {\log \left ({\left (e x^{3} + d\right )}^{p} c\right )^{2}}{x^{4}} \,d x } \]
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Timed out. \[ \int \frac {\log ^2\left (c \left (d+e x^3\right )^p\right )}{x^4} \, dx=\int \frac {{\ln \left (c\,{\left (e\,x^3+d\right )}^p\right )}^2}{x^4} \,d x \]
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