Optimal. Leaf size=414 \[ \frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}-\frac{b \text{PolyLog}\left (2,\frac{d x}{c}+1\right )}{a^2}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log (c+d x) \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (-\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}+\frac{d^2}{3 a c^2 x}+\frac{d^3 \log (x)}{3 a c^3}-\frac{d^3 \log (c+d x)}{3 a c^3}-\frac{d}{6 a c x^2}-\frac{\log (c+d x)}{3 a x^3} \]
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Rubi [A] time = 0.495631, antiderivative size = 414, normalized size of antiderivative = 1., number of steps used = 18, number of rules used = 9, integrand size = 19, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.474, Rules used = {266, 44, 2416, 2395, 2394, 2315, 260, 2393, 2391} \[ \frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}-\frac{b \text{PolyLog}\left (2,\frac{d x}{c}+1\right )}{a^2}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log (c+d x) \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (-\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}+\frac{d^2}{3 a c^2 x}+\frac{d^3 \log (x)}{3 a c^3}-\frac{d^3 \log (c+d x)}{3 a c^3}-\frac{d}{6 a c x^2}-\frac{\log (c+d x)}{3 a x^3} \]
Antiderivative was successfully verified.
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Rule 266
Rule 44
Rule 2416
Rule 2395
Rule 2394
Rule 2315
Rule 260
Rule 2393
Rule 2391
Rubi steps
\begin{align*} \int \frac{\log (c+d x)}{x^4 \left (a+b x^3\right )} \, dx &=\int \left (\frac{\log (c+d x)}{a x^4}-\frac{b \log (c+d x)}{a^2 x}+\frac{b^2 x^2 \log (c+d x)}{a^2 \left (a+b x^3\right )}\right ) \, dx\\ &=\frac{\int \frac{\log (c+d x)}{x^4} \, dx}{a}-\frac{b \int \frac{\log (c+d x)}{x} \, dx}{a^2}+\frac{b^2 \int \frac{x^2 \log (c+d x)}{a+b x^3} \, dx}{a^2}\\ &=-\frac{\log (c+d x)}{3 a x^3}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b^2 \int \left (\frac{\log (c+d x)}{3 b^{2/3} \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}+\frac{\log (c+d x)}{3 b^{2/3} \left (-\sqrt [3]{-1} \sqrt [3]{a}+\sqrt [3]{b} x\right )}+\frac{\log (c+d x)}{3 b^{2/3} \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}\right ) \, dx}{a^2}+\frac{d \int \frac{1}{x^3 (c+d x)} \, dx}{3 a}+\frac{(b d) \int \frac{\log \left (-\frac{d x}{c}\right )}{c+d x} \, dx}{a^2}\\ &=-\frac{\log (c+d x)}{3 a x^3}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}-\frac{b \text{Li}_2\left (1+\frac{d x}{c}\right )}{a^2}+\frac{b^{4/3} \int \frac{\log (c+d x)}{\sqrt [3]{a}+\sqrt [3]{b} x} \, dx}{3 a^2}+\frac{b^{4/3} \int \frac{\log (c+d x)}{-\sqrt [3]{-1} \sqrt [3]{a}+\sqrt [3]{b} x} \, dx}{3 a^2}+\frac{b^{4/3} \int \frac{\log (c+d x)}{(-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x} \, dx}{3 a^2}+\frac{d \int \left (\frac{1}{c x^3}-\frac{d}{c^2 x^2}+\frac{d^2}{c^3 x}-\frac{d^3}{c^3 (c+d x)}\right ) \, dx}{3 a}\\ &=-\frac{d}{6 a c x^2}+\frac{d^2}{3 a c^2 x}+\frac{d^3 \log (x)}{3 a c^3}-\frac{d^3 \log (c+d x)}{3 a c^3}-\frac{\log (c+d x)}{3 a x^3}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (-\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{b} c+\sqrt [3]{-1} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}-\frac{b \text{Li}_2\left (1+\frac{d x}{c}\right )}{a^2}-\frac{(b d) \int \frac{\log \left (\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{-\sqrt [3]{b} c+\sqrt [3]{a} d}\right )}{c+d x} \, dx}{3 a^2}-\frac{(b d) \int \frac{\log \left (\frac{d \left (-\sqrt [3]{-1} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{-\sqrt [3]{b} c-\sqrt [3]{-1} \sqrt [3]{a} d}\right )}{c+d x} \, dx}{3 a^2}-\frac{(b d) \int \frac{\log \left (\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{-\sqrt [3]{b} c+(-1)^{2/3} \sqrt [3]{a} d}\right )}{c+d x} \, dx}{3 a^2}\\ &=-\frac{d}{6 a c x^2}+\frac{d^2}{3 a c^2 x}+\frac{d^3 \log (x)}{3 a c^3}-\frac{d^3 \log (c+d x)}{3 a c^3}-\frac{\log (c+d x)}{3 a x^3}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (-\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{b} c+\sqrt [3]{-1} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}-\frac{b \text{Li}_2\left (1+\frac{d x}{c}\right )}{a^2}-\frac{b \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{\sqrt [3]{b} x}{-\sqrt [3]{b} c+\sqrt [3]{a} d}\right )}{x} \, dx,x,c+d x\right )}{3 a^2}-\frac{b \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{\sqrt [3]{b} x}{-\sqrt [3]{b} c-\sqrt [3]{-1} \sqrt [3]{a} d}\right )}{x} \, dx,x,c+d x\right )}{3 a^2}-\frac{b \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{\sqrt [3]{b} x}{-\sqrt [3]{b} c+(-1)^{2/3} \sqrt [3]{a} d}\right )}{x} \, dx,x,c+d x\right )}{3 a^2}\\ &=-\frac{d}{6 a c x^2}+\frac{d^2}{3 a c^2 x}+\frac{d^3 \log (x)}{3 a c^3}-\frac{d^3 \log (c+d x)}{3 a c^3}-\frac{\log (c+d x)}{3 a x^3}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (-\frac{d \left ((-1)^{2/3} \sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{b} c+\sqrt [3]{-1} \sqrt [3]{a} d}\right ) \log (c+d x)}{3 a^2}+\frac{b \text{Li}_2\left (\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \text{Li}_2\left (\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c+\sqrt [3]{-1} \sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \text{Li}_2\left (\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}-\frac{b \text{Li}_2\left (1+\frac{d x}{c}\right )}{a^2}\\ \end{align*}
Mathematica [A] time = 0.139216, size = 405, normalized size = 0.98 \[ -\frac{b \text{PolyLog}\left (2,\frac{c+d x}{c}\right )}{a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}+\frac{b \text{PolyLog}\left (2,\frac{\sqrt [3]{b} (c+d x)}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}-\frac{b \log \left (-\frac{d x}{c}\right ) \log (c+d x)}{a^2}+\frac{b \log (c+d x) \log \left (-\frac{d \left (\sqrt [3]{a}+\sqrt [3]{b} x\right )}{\sqrt [3]{b} c-\sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (-\frac{(-1)^{2/3} d \left (\sqrt [3]{a}-\sqrt [3]{-1} \sqrt [3]{b} x\right )}{\sqrt [3]{b} c-(-1)^{2/3} \sqrt [3]{a} d}\right )}{3 a^2}+\frac{b \log (c+d x) \log \left (\frac{\sqrt [3]{-1} d \left (\sqrt [3]{a}+(-1)^{2/3} \sqrt [3]{b} x\right )}{\sqrt [3]{-1} \sqrt [3]{a} d+\sqrt [3]{b} c}\right )}{3 a^2}-\frac{d \left (-\frac{2 d^2 \log (x)}{c^3}+\frac{2 d^2 \log (c+d x)}{c^3}-\frac{2 d}{c^2 x}+\frac{1}{c x^2}\right )}{6 a}-\frac{\log (c+d x)}{3 a x^3} \]
Antiderivative was successfully verified.
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Maple [C] time = 0.417, size = 185, normalized size = 0.5 \begin{align*} -{\frac{b\ln \left ( dx+c \right ) }{{a}^{2}}\ln \left ( -{\frac{dx}{c}} \right ) }-{\frac{b}{{a}^{2}}{\it dilog} \left ( -{\frac{dx}{c}} \right ) }+{\frac{b}{3\,{a}^{2}}\sum _{{\it \_R1}={\it RootOf} \left ( b{{\it \_Z}}^{3}-3\,{{\it \_Z}}^{2}bc+3\,{\it \_Z}\,b{c}^{2}+a{d}^{3}-b{c}^{3} \right ) }\ln \left ( dx+c \right ) \ln \left ({\frac{-dx+{\it \_R1}-c}{{\it \_R1}}} \right ) +{\it dilog} \left ({\frac{-dx+{\it \_R1}-c}{{\it \_R1}}} \right ) }+{\frac{{d}^{3}\ln \left ( dx \right ) }{3\,a{c}^{3}}}+{\frac{{d}^{2}}{3\,{c}^{2}ax}}-{\frac{d}{6\,ac{x}^{2}}}-{\frac{{d}^{3}\ln \left ( dx+c \right ) }{3\,a{c}^{3}}}-{\frac{\ln \left ( dx+c \right ) }{3\,a{x}^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\log \left (d x + c\right )}{{\left (b x^{3} + a\right )} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\log \left (d x + c\right )}{b x^{7} + a x^{4}}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{\log \left (d x + c\right )}{{\left (b x^{3} + a\right )} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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