Optimal. Leaf size=420 \[ -\frac{3 i x \text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{i \text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 i x \text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}-\frac{i \text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 i \text{PolyLog}\left (3,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{3 i \text{PolyLog}\left (3,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 x^2 f^x}{8 a^2 \log (f) \left (a+b f^{2 x}\right )}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{x f^x}{4 a^2 \log ^2(f) \left (a+b f^{2 x}\right )}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{x^2 f^x}{4 a \log (f) \left (a+b f^{2 x}\right )^2} \]
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Rubi [A] time = 0.582367, antiderivative size = 420, normalized size of antiderivative = 1., number of steps used = 24, number of rules used = 12, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.667, Rules used = {2249, 199, 205, 2245, 14, 2282, 4848, 2391, 12, 5143, 2531, 6589} \[ -\frac{3 i x \text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{i \text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 i x \text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}-\frac{i \text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 i \text{PolyLog}\left (3,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{3 i \text{PolyLog}\left (3,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 x^2 f^x}{8 a^2 \log (f) \left (a+b f^{2 x}\right )}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{x f^x}{4 a^2 \log ^2(f) \left (a+b f^{2 x}\right )}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{x^2 f^x}{4 a \log (f) \left (a+b f^{2 x}\right )^2} \]
Antiderivative was successfully verified.
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Rule 2249
Rule 199
Rule 205
Rule 2245
Rule 14
Rule 2282
Rule 4848
Rule 2391
Rule 12
Rule 5143
Rule 2531
Rule 6589
Rubi steps
\begin{align*} \int \frac{f^x x^2}{\left (a+b f^{2 x}\right )^3} \, dx &=\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-2 \int x \left (\frac{f^x}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}\right ) \, dx\\ &=\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-2 \int \left (\frac{f^x x}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}\right ) \, dx\\ &=\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{3 \int \frac{f^x x}{a+b f^{2 x}} \, dx}{4 a^2 \log (f)}-\frac{\int \frac{f^x x}{\left (a+b f^{2 x}\right )^2} \, dx}{2 a \log (f)}-\frac{3 \int x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{4 a^{5/2} \sqrt{b} \log (f)}\\ &=-\frac{f^x x}{4 a^2 \left (a+b f^{2 x}\right ) \log ^2(f)}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}+\frac{3 \int \frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{\sqrt{a} \sqrt{b} \log (f)} \, dx}{4 a^2 \log (f)}+\frac{\int \left (\frac{f^x}{2 a \left (a+b f^{2 x}\right ) \log (f)}+\frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{3/2} \sqrt{b} \log (f)}\right ) \, dx}{2 a \log (f)}-\frac{(3 i) \int x \log \left (1-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{8 a^{5/2} \sqrt{b} \log (f)}+\frac{(3 i) \int x \log \left (1+\frac{i \sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{8 a^{5/2} \sqrt{b} \log (f)}\\ &=-\frac{f^x x}{4 a^2 \left (a+b f^{2 x}\right ) \log ^2(f)}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{3 i x \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 i x \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{\int \frac{f^x}{a+b f^{2 x}} \, dx}{4 a^2 \log ^2(f)}+\frac{(3 i) \int \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{8 a^{5/2} \sqrt{b} \log ^2(f)}-\frac{(3 i) \int \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{\int \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{4 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 \int \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right ) \, dx}{4 a^{5/2} \sqrt{b} \log ^2(f)}\\ &=-\frac{f^x x}{4 a^2 \left (a+b f^{2 x}\right ) \log ^2(f)}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{3 i x \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 i x \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{\operatorname{Subst}\left (\int \frac{1}{a+b x^2} \, dx,x,f^x\right )}{4 a^2 \log ^3(f)}+\frac{(3 i) \operatorname{Subst}\left (\int \frac{\text{Li}_2\left (-\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{(3 i) \operatorname{Subst}\left (\int \frac{\text{Li}_2\left (\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{\operatorname{Subst}\left (\int \frac{\tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 \operatorname{Subst}\left (\int \frac{\tan ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}\\ &=\frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{f^x x}{4 a^2 \left (a+b f^{2 x}\right ) \log ^2(f)}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}-\frac{3 i x \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 i x \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 i \text{Li}_3\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{3 i \text{Li}_3\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1-\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{i \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{(3 i) \operatorname{Subst}\left (\int \frac{\log \left (1-\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{(3 i) \operatorname{Subst}\left (\int \frac{\log \left (1+\frac{i \sqrt{b} x}{\sqrt{a}}\right )}{x} \, dx,x,f^x\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}\\ &=\frac{\tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{4 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{f^x x}{4 a^2 \left (a+b f^{2 x}\right ) \log ^2(f)}-\frac{x \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{a^{5/2} \sqrt{b} \log ^2(f)}+\frac{f^x x^2}{4 a \left (a+b f^{2 x}\right )^2 \log (f)}+\frac{3 f^x x^2}{8 a^2 \left (a+b f^{2 x}\right ) \log (f)}+\frac{3 x^2 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log (f)}+\frac{i \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{3 i x \text{Li}_2\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}-\frac{i \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{2 a^{5/2} \sqrt{b} \log ^3(f)}+\frac{3 i x \text{Li}_2\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^2(f)}+\frac{3 i \text{Li}_3\left (-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}-\frac{3 i \text{Li}_3\left (\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )}{8 a^{5/2} \sqrt{b} \log ^3(f)}\\ \end{align*}
Mathematica [A] time = 0.490146, size = 353, normalized size = 0.84 \[ \frac{\frac{3 i \left (2 \text{PolyLog}\left (3,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )-2 \text{PolyLog}\left (3,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )-2 x \log (f) \text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )+2 x \log (f) \text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )+x^2 \log ^2(f) \log \left (1-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )-x^2 \log ^2(f) \log \left (1+\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )\right )}{\sqrt{a} \sqrt{b}}-\frac{8 i \left (-\text{PolyLog}\left (2,-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )+\text{PolyLog}\left (2,\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )+x \log (f) \left (\log \left (1-\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )-\log \left (1+\frac{i \sqrt{b} f^x}{\sqrt{a}}\right )\right )\right )}{\sqrt{a} \sqrt{b}}+\frac{4 a x^2 f^x \log ^2(f)}{\left (a+b f^{2 x}\right )^2}+\frac{2 x f^x \log (f) (3 x \log (f)-2)}{a+b f^{2 x}}+\frac{4 \tan ^{-1}\left (\frac{\sqrt{b} f^x}{\sqrt{a}}\right )}{\sqrt{a} \sqrt{b}}}{16 a^2 \log ^3(f)} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.143, size = 0, normalized size = 0. \begin{align*} \int{\frac{{f}^{x}{x}^{2}}{ \left ( a+b{f}^{2\,x} \right ) ^{3}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [C] time = 1.68545, size = 1747, normalized size = 4.16 \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*} \frac{f^{3 x} \left (3 b x^{2} \log{\left (f \right )} - 2 b x\right ) + f^{x} \left (5 a x^{2} \log{\left (f \right )} - 2 a x\right )}{8 a^{4} \log{\left (f \right )}^{2} + 16 a^{3} b f^{2 x} \log{\left (f \right )}^{2} + 8 a^{2} b^{2} f^{4 x} \log{\left (f \right )}^{2}} + \frac{\int \frac{2 f^{x}}{a + b f^{2 x}}\, dx + \int - \frac{8 f^{x} x \log{\left (f \right )}}{a + b f^{2 x}}\, dx + \int \frac{3 f^{x} x^{2} \log{\left (f \right )}^{2}}{a + b f^{2 x}}\, dx}{8 a^{2} \log{\left (f \right )}^{2}} \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{f^{x} x^{2}}{{\left (b f^{2 \, x} + a\right )}^{3}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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