Optimal. Leaf size=119 \[ \frac{3 d^2 (c+d x) \text{PolyLog}\left (2,-e^{2 (e+f x)}\right )}{f^3}-\frac{3 d^3 \text{PolyLog}\left (3,-e^{2 (e+f x)}\right )}{2 f^4}+\frac{3 d (c+d x)^2 \log \left (e^{2 (e+f x)}+1\right )}{f^2}-\frac{(c+d x)^3 \tanh (e+f x)}{f}-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d} \]
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Rubi [A] time = 0.209542, antiderivative size = 119, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 7, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.438, Rules used = {3720, 3718, 2190, 2531, 2282, 6589, 32} \[ \frac{3 d^2 (c+d x) \text{PolyLog}\left (2,-e^{2 (e+f x)}\right )}{f^3}-\frac{3 d^3 \text{PolyLog}\left (3,-e^{2 (e+f x)}\right )}{2 f^4}+\frac{3 d (c+d x)^2 \log \left (e^{2 (e+f x)}+1\right )}{f^2}-\frac{(c+d x)^3 \tanh (e+f x)}{f}-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d} \]
Antiderivative was successfully verified.
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Rule 3720
Rule 3718
Rule 2190
Rule 2531
Rule 2282
Rule 6589
Rule 32
Rubi steps
\begin{align*} \int (c+d x)^3 \tanh ^2(e+f x) \, dx &=-\frac{(c+d x)^3 \tanh (e+f x)}{f}+\frac{(3 d) \int (c+d x)^2 \tanh (e+f x) \, dx}{f}+\int (c+d x)^3 \, dx\\ &=-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d}-\frac{(c+d x)^3 \tanh (e+f x)}{f}+\frac{(6 d) \int \frac{e^{2 (e+f x)} (c+d x)^2}{1+e^{2 (e+f x)}} \, dx}{f}\\ &=-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d}+\frac{3 d (c+d x)^2 \log \left (1+e^{2 (e+f x)}\right )}{f^2}-\frac{(c+d x)^3 \tanh (e+f x)}{f}-\frac{\left (6 d^2\right ) \int (c+d x) \log \left (1+e^{2 (e+f x)}\right ) \, dx}{f^2}\\ &=-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d}+\frac{3 d (c+d x)^2 \log \left (1+e^{2 (e+f x)}\right )}{f^2}+\frac{3 d^2 (c+d x) \text{Li}_2\left (-e^{2 (e+f x)}\right )}{f^3}-\frac{(c+d x)^3 \tanh (e+f x)}{f}-\frac{\left (3 d^3\right ) \int \text{Li}_2\left (-e^{2 (e+f x)}\right ) \, dx}{f^3}\\ &=-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d}+\frac{3 d (c+d x)^2 \log \left (1+e^{2 (e+f x)}\right )}{f^2}+\frac{3 d^2 (c+d x) \text{Li}_2\left (-e^{2 (e+f x)}\right )}{f^3}-\frac{(c+d x)^3 \tanh (e+f x)}{f}-\frac{\left (3 d^3\right ) \operatorname{Subst}\left (\int \frac{\text{Li}_2(-x)}{x} \, dx,x,e^{2 (e+f x)}\right )}{2 f^4}\\ &=-\frac{(c+d x)^3}{f}+\frac{(c+d x)^4}{4 d}+\frac{3 d (c+d x)^2 \log \left (1+e^{2 (e+f x)}\right )}{f^2}+\frac{3 d^2 (c+d x) \text{Li}_2\left (-e^{2 (e+f x)}\right )}{f^3}-\frac{3 d^3 \text{Li}_3\left (-e^{2 (e+f x)}\right )}{2 f^4}-\frac{(c+d x)^3 \tanh (e+f x)}{f}\\ \end{align*}
Mathematica [A] time = 2.02132, size = 179, normalized size = 1.5 \[ \frac{1}{4} \left (\frac{2 d e^{2 e} \left (-\frac{3 d \left (e^{-2 e}+1\right ) \left (2 f (c+d x) \text{PolyLog}\left (2,-e^{-2 (e+f x)}\right )+d \text{PolyLog}\left (3,-e^{-2 (e+f x)}\right )\right )}{f^3}+\frac{6 \left (e^{-2 e}+1\right ) (c+d x)^2 \log \left (e^{-2 (e+f x)}+1\right )}{f}+\frac{4 e^{-2 e} (c+d x)^3}{d}\right )}{\left (e^{2 e}+1\right ) f}+x \left (6 c^2 d x+4 c^3+4 c d^2 x^2+d^3 x^3\right )-\frac{4 \text{sech}(e) (c+d x)^3 \sinh (f x) \text{sech}(e+f x)}{f}\right ) \]
Antiderivative was successfully verified.
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Maple [B] time = 0.041, size = 328, normalized size = 2.8 \begin{align*}{\frac{{d}^{3}{x}^{4}}{4}}+c{d}^{2}{x}^{3}+{\frac{3\,{c}^{2}d{x}^{2}}{2}}+{c}^{3}x+2\,{\frac{{d}^{3}{x}^{3}+3\,c{d}^{2}{x}^{2}+3\,{c}^{2}dx+{c}^{3}}{f \left ({{\rm e}^{2\,fx+2\,e}}+1 \right ) }}+3\,{\frac{{c}^{2}d\ln \left ({{\rm e}^{2\,fx+2\,e}}+1 \right ) }{{f}^{2}}}-6\,{\frac{{c}^{2}d\ln \left ({{\rm e}^{fx+e}} \right ) }{{f}^{2}}}-6\,{\frac{{d}^{3}{e}^{2}\ln \left ({{\rm e}^{fx+e}} \right ) }{{f}^{4}}}-2\,{\frac{{d}^{3}{x}^{3}}{f}}+6\,{\frac{{d}^{3}{e}^{2}x}{{f}^{3}}}+4\,{\frac{{d}^{3}{e}^{3}}{{f}^{4}}}+3\,{\frac{{d}^{3}\ln \left ({{\rm e}^{2\,fx+2\,e}}+1 \right ){x}^{2}}{{f}^{2}}}+3\,{\frac{{d}^{3}{\it polylog} \left ( 2,-{{\rm e}^{2\,fx+2\,e}} \right ) x}{{f}^{3}}}-{\frac{3\,{d}^{3}{\it polylog} \left ( 3,-{{\rm e}^{2\,fx+2\,e}} \right ) }{2\,{f}^{4}}}+12\,{\frac{c{d}^{2}e\ln \left ({{\rm e}^{fx+e}} \right ) }{{f}^{3}}}-6\,{\frac{c{d}^{2}{x}^{2}}{f}}-12\,{\frac{c{d}^{2}ex}{{f}^{2}}}-6\,{\frac{c{d}^{2}{e}^{2}}{{f}^{3}}}+6\,{\frac{c{d}^{2}\ln \left ({{\rm e}^{2\,fx+2\,e}}+1 \right ) x}{{f}^{2}}}+3\,{\frac{c{d}^{2}{\it polylog} \left ( 2,-{{\rm e}^{2\,fx+2\,e}} \right ) }{{f}^{3}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] time = 1.82238, size = 463, normalized size = 3.89 \begin{align*} c^{3}{\left (x + \frac{e}{f} - \frac{2}{f{\left (e^{\left (-2 \, f x - 2 \, e\right )} + 1\right )}}\right )} - \frac{3}{2} \, c^{2} d{\left (\frac{2 \, x e^{\left (2 \, f x + 2 \, e\right )}}{f e^{\left (2 \, f x + 2 \, e\right )} + f} - \frac{f x^{2} +{\left (f x^{2} e^{\left (2 \, e\right )} - 2 \, x e^{\left (2 \, e\right )}\right )} e^{\left (2 \, f x\right )}}{f e^{\left (2 \, f x + 2 \, e\right )} + f} - \frac{2 \, \log \left ({\left (e^{\left (2 \, f x + 2 \, e\right )} + 1\right )} e^{\left (-2 \, e\right )}\right )}{f^{2}}\right )} + \frac{3 \,{\left (2 \, f x \log \left (e^{\left (2 \, f x + 2 \, e\right )} + 1\right ) +{\rm Li}_2\left (-e^{\left (2 \, f x + 2 \, e\right )}\right )\right )} c d^{2}}{f^{3}} + \frac{d^{3} f x^{4} + 24 \, c d^{2} x^{2} + 4 \,{\left (c d^{2} f + 2 \, d^{3}\right )} x^{3} +{\left (d^{3} f x^{4} e^{\left (2 \, e\right )} + 4 \, c d^{2} f x^{3} e^{\left (2 \, e\right )}\right )} e^{\left (2 \, f x\right )}}{4 \,{\left (f e^{\left (2 \, f x + 2 \, e\right )} + f\right )}} + \frac{3 \,{\left (2 \, f^{2} x^{2} \log \left (e^{\left (2 \, f x + 2 \, e\right )} + 1\right ) + 2 \, f x{\rm Li}_2\left (-e^{\left (2 \, f x + 2 \, e\right )}\right ) -{\rm Li}_{3}(-e^{\left (2 \, f x + 2 \, e\right )})\right )} d^{3}}{2 \, f^{4}} - \frac{2 \,{\left (d^{3} f^{3} x^{3} + 3 \, c d^{2} f^{3} x^{2}\right )}}{f^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] time = 1.90288, size = 3497, normalized size = 29.39 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \left (c + d x\right )^{3} \tanh ^{2}{\left (e + f x \right )}\, dx \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{\left (d x + c\right )}^{3} \tanh \left (f x + e\right )^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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