Integrand size = 27, antiderivative size = 388 \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=-\frac {b e n}{6 d f x^2}+\frac {b e^2 n}{3 d^2 f x}+\frac {b e^3 n \log (x)}{3 d^3 f}-\frac {b e g n \log (x)}{d f^2}-\frac {b e^3 n \log (d+e x)}{3 d^3 f}+\frac {b e g n \log (d+e x)}{d f^2}-\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {b g^{3/2} n \operatorname {PolyLog}\left (2,-\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}+\frac {b g^{3/2} n \operatorname {PolyLog}\left (2,\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}} \]
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Time = 0.28 (sec) , antiderivative size = 388, normalized size of antiderivative = 1.00, number of steps used = 17, number of rules used = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.444, Rules used = {331, 211, 2463, 2442, 46, 36, 29, 31, 2456, 2441, 2440, 2438} \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^{3/2} \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{d \sqrt {g}+e \sqrt {-f}}\right ) \left (a+b \log \left (c (d+e x)^n\right )\right )}{2 (-f)^{5/2}}-\frac {g^{3/2} \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right ) \left (a+b \log \left (c (d+e x)^n\right )\right )}{2 (-f)^{5/2}}-\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {b e^3 n \log (x)}{3 d^3 f}-\frac {b e^3 n \log (d+e x)}{3 d^3 f}+\frac {b e^2 n}{3 d^2 f x}-\frac {b e g n \log (x)}{d f^2}+\frac {b e g n \log (d+e x)}{d f^2}-\frac {b g^{3/2} n \operatorname {PolyLog}\left (2,-\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}+\frac {b g^{3/2} n \operatorname {PolyLog}\left (2,\frac {\sqrt {g} (d+e x)}{\sqrt {g} d+e \sqrt {-f}}\right )}{2 (-f)^{5/2}}-\frac {b e n}{6 d f x^2} \]
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Rule 29
Rule 31
Rule 36
Rule 46
Rule 211
Rule 331
Rule 2438
Rule 2440
Rule 2441
Rule 2442
Rule 2456
Rule 2463
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a+b \log \left (c (d+e x)^n\right )}{f x^4}-\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x^2}+\frac {g^2 \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 \left (f+g x^2\right )}\right ) \, dx \\ & = \frac {\int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4} \, dx}{f}-\frac {g \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^2} \, dx}{f^2}+\frac {g^2 \int \frac {a+b \log \left (c (d+e x)^n\right )}{f+g x^2} \, dx}{f^2} \\ & = -\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^2 \int \left (\frac {\sqrt {-f} \left (a+b \log \left (c (d+e x)^n\right )\right )}{2 f \left (\sqrt {-f}-\sqrt {g} x\right )}+\frac {\sqrt {-f} \left (a+b \log \left (c (d+e x)^n\right )\right )}{2 f \left (\sqrt {-f}+\sqrt {g} x\right )}\right ) \, dx}{f^2}+\frac {(b e n) \int \frac {1}{x^3 (d+e x)} \, dx}{3 f}-\frac {(b e g n) \int \frac {1}{x (d+e x)} \, dx}{f^2} \\ & = -\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}-\frac {g^2 \int \frac {a+b \log \left (c (d+e x)^n\right )}{\sqrt {-f}-\sqrt {g} x} \, dx}{2 (-f)^{5/2}}-\frac {g^2 \int \frac {a+b \log \left (c (d+e x)^n\right )}{\sqrt {-f}+\sqrt {g} x} \, dx}{2 (-f)^{5/2}}+\frac {(b e n) \int \left (\frac {1}{d x^3}-\frac {e}{d^2 x^2}+\frac {e^2}{d^3 x}-\frac {e^3}{d^3 (d+e x)}\right ) \, dx}{3 f}-\frac {(b e g n) \int \frac {1}{x} \, dx}{d f^2}+\frac {\left (b e^2 g n\right ) \int \frac {1}{d+e x} \, dx}{d f^2} \\ & = -\frac {b e n}{6 d f x^2}+\frac {b e^2 n}{3 d^2 f x}+\frac {b e^3 n \log (x)}{3 d^3 f}-\frac {b e g n \log (x)}{d f^2}-\frac {b e^3 n \log (d+e x)}{3 d^3 f}+\frac {b e g n \log (d+e x)}{d f^2}-\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {\left (b e g^{3/2} n\right ) \int \frac {\log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{d+e x} \, dx}{2 (-f)^{5/2}}+\frac {\left (b e g^{3/2} n\right ) \int \frac {\log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{d+e x} \, dx}{2 (-f)^{5/2}} \\ & = -\frac {b e n}{6 d f x^2}+\frac {b e^2 n}{3 d^2 f x}+\frac {b e^3 n \log (x)}{3 d^3 f}-\frac {b e g n \log (x)}{d f^2}-\frac {b e^3 n \log (d+e x)}{3 d^3 f}+\frac {b e g n \log (d+e x)}{d f^2}-\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}+\frac {\left (b g^{3/2} n\right ) \text {Subst}\left (\int \frac {\log \left (1+\frac {\sqrt {g} x}{e \sqrt {-f}-d \sqrt {g}}\right )}{x} \, dx,x,d+e x\right )}{2 (-f)^{5/2}}-\frac {\left (b g^{3/2} n\right ) \text {Subst}\left (\int \frac {\log \left (1-\frac {\sqrt {g} x}{e \sqrt {-f}+d \sqrt {g}}\right )}{x} \, dx,x,d+e x\right )}{2 (-f)^{5/2}} \\ & = -\frac {b e n}{6 d f x^2}+\frac {b e^2 n}{3 d^2 f x}+\frac {b e^3 n \log (x)}{3 d^3 f}-\frac {b e g n \log (x)}{d f^2}-\frac {b e^3 n \log (d+e x)}{3 d^3 f}+\frac {b e g n \log (d+e x)}{d f^2}-\frac {a+b \log \left (c (d+e x)^n\right )}{3 f x^3}+\frac {g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}-\frac {b g^{3/2} n \text {Li}_2\left (-\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}-d \sqrt {g}}\right )}{2 (-f)^{5/2}}+\frac {b g^{3/2} n \text {Li}_2\left (\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}+d \sqrt {g}}\right )}{2 (-f)^{5/2}} \\ \end{align*}
Time = 0.23 (sec) , antiderivative size = 350, normalized size of antiderivative = 0.90 \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\frac {1}{6} \left (-\frac {6 b e g n (\log (x)-\log (d+e x))}{d f^2}-\frac {b e n \left (d (d-2 e x)-2 e^2 x^2 \log (x)+2 e^2 x^2 \log (d+e x)\right )}{d^3 f x^2}-\frac {2 \left (a+b \log \left (c (d+e x)^n\right )\right )}{f x^3}+\frac {6 g \left (a+b \log \left (c (d+e x)^n\right )\right )}{f^2 x}+\frac {3 g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}-\sqrt {g} x\right )}{e \sqrt {-f}+d \sqrt {g}}\right )}{(-f)^{5/2}}-\frac {3 g^{3/2} \left (a+b \log \left (c (d+e x)^n\right )\right ) \log \left (\frac {e \left (\sqrt {-f}+\sqrt {g} x\right )}{e \sqrt {-f}-d \sqrt {g}}\right )}{(-f)^{5/2}}-\frac {3 b g^{3/2} n \operatorname {PolyLog}\left (2,-\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}-d \sqrt {g}}\right )}{(-f)^{5/2}}+\frac {3 b g^{3/2} n \operatorname {PolyLog}\left (2,\frac {\sqrt {g} (d+e x)}{e \sqrt {-f}+d \sqrt {g}}\right )}{(-f)^{5/2}}\right ) \]
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 1.75 (sec) , antiderivative size = 598, normalized size of antiderivative = 1.54
method | result | size |
risch | \(-\frac {b \,g^{2} \arctan \left (\frac {2 g \left (e x +d \right )-2 d g}{2 e \sqrt {f g}}\right ) n \ln \left (e x +d \right )}{f^{2} \sqrt {f g}}+\frac {b \,g^{2} \arctan \left (\frac {2 g \left (e x +d \right )-2 d g}{2 e \sqrt {f g}}\right ) \ln \left (\left (e x +d \right )^{n}\right )}{f^{2} \sqrt {f g}}-\frac {b \ln \left (\left (e x +d \right )^{n}\right )}{3 f \,x^{3}}+\frac {b \ln \left (\left (e x +d \right )^{n}\right ) g}{f^{2} x}-\frac {e b n g \ln \left (e x \right )}{f^{2} d}+\frac {b e g n \ln \left (e x +d \right )}{d \,f^{2}}-\frac {b e n}{6 d f \,x^{2}}+\frac {b \,e^{2} n}{3 d^{2} f x}+\frac {e^{3} b n \ln \left (e x \right )}{3 f \,d^{3}}-\frac {b \,e^{3} n \ln \left (e x +d \right )}{3 d^{3} f}+\frac {b n \,g^{2} \ln \left (e x +d \right ) \ln \left (\frac {e \sqrt {-f g}-g \left (e x +d \right )+d g}{e \sqrt {-f g}+d g}\right )}{2 f^{2} \sqrt {-f g}}-\frac {b n \,g^{2} \ln \left (e x +d \right ) \ln \left (\frac {e \sqrt {-f g}+g \left (e x +d \right )-d g}{e \sqrt {-f g}-d g}\right )}{2 f^{2} \sqrt {-f g}}+\frac {b n \,g^{2} \operatorname {dilog}\left (\frac {e \sqrt {-f g}-g \left (e x +d \right )+d g}{e \sqrt {-f g}+d g}\right )}{2 f^{2} \sqrt {-f g}}-\frac {b n \,g^{2} \operatorname {dilog}\left (\frac {e \sqrt {-f g}+g \left (e x +d \right )-d g}{e \sqrt {-f g}-d g}\right )}{2 f^{2} \sqrt {-f g}}+\left (-\frac {i b \pi \,\operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right ) \operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i \left (e x +d \right )^{n}\right )}{2}+\frac {i \pi \,\operatorname {csgn}\left (i c \right ) \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{2} b}{2}+\frac {i \pi \,\operatorname {csgn}\left (i \left (e x +d \right )^{n}\right ) \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{2} b}{2}-\frac {i \pi \operatorname {csgn}\left (i c \left (e x +d \right )^{n}\right )^{3} b}{2}+b \ln \left (c \right )+a \right ) \left (-\frac {1}{3 f \,x^{3}}+\frac {g}{f^{2} x}+\frac {g^{2} \arctan \left (\frac {g x}{\sqrt {f g}}\right )}{f^{2} \sqrt {f g}}\right )\) | \(598\) |
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\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x^{2} + f\right )} x^{4}} \,d x } \]
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Timed out. \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\text {Timed out} \]
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\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x^{2} + f\right )} x^{4}} \,d x } \]
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\[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\int { \frac {b \log \left ({\left (e x + d\right )}^{n} c\right ) + a}{{\left (g x^{2} + f\right )} x^{4}} \,d x } \]
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Timed out. \[ \int \frac {a+b \log \left (c (d+e x)^n\right )}{x^4 \left (f+g x^2\right )} \, dx=\int \frac {a+b\,\ln \left (c\,{\left (d+e\,x\right )}^n\right )}{x^4\,\left (g\,x^2+f\right )} \,d x \]
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