Optimal. Leaf size=113 \[ \frac{x^3}{8 \left (3 x^4+2\right )}+\frac{\log \left (3 x^2-6^{3/4} x+\sqrt{6}\right )}{32\ 6^{3/4}}-\frac{\log \left (3 x^2+6^{3/4} x+\sqrt{6}\right )}{32\ 6^{3/4}}-\frac{\tan ^{-1}\left (1-\sqrt [4]{6} x\right )}{16\ 6^{3/4}}+\frac{\tan ^{-1}\left (\sqrt [4]{6} x+1\right )}{16\ 6^{3/4}} \]
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Rubi [A] time = 0.0759393, antiderivative size = 113, normalized size of antiderivative = 1., number of steps used = 10, number of rules used = 7, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.538, Rules used = {290, 297, 1162, 617, 204, 1165, 628} \[ \frac{x^3}{8 \left (3 x^4+2\right )}+\frac{\log \left (3 x^2-6^{3/4} x+\sqrt{6}\right )}{32\ 6^{3/4}}-\frac{\log \left (3 x^2+6^{3/4} x+\sqrt{6}\right )}{32\ 6^{3/4}}-\frac{\tan ^{-1}\left (1-\sqrt [4]{6} x\right )}{16\ 6^{3/4}}+\frac{\tan ^{-1}\left (\sqrt [4]{6} x+1\right )}{16\ 6^{3/4}} \]
Antiderivative was successfully verified.
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Rule 290
Rule 297
Rule 1162
Rule 617
Rule 204
Rule 1165
Rule 628
Rubi steps
\begin{align*} \int \frac{x^2}{\left (2+3 x^4\right )^2} \, dx &=\frac{x^3}{8 \left (2+3 x^4\right )}+\frac{1}{8} \int \frac{x^2}{2+3 x^4} \, dx\\ &=\frac{x^3}{8 \left (2+3 x^4\right )}-\frac{\int \frac{\sqrt{2}-\sqrt{3} x^2}{2+3 x^4} \, dx}{16 \sqrt{3}}+\frac{\int \frac{\sqrt{2}+\sqrt{3} x^2}{2+3 x^4} \, dx}{16 \sqrt{3}}\\ &=\frac{x^3}{8 \left (2+3 x^4\right )}+\frac{1}{96} \int \frac{1}{\sqrt{\frac{2}{3}}-\frac{2^{3/4} x}{\sqrt [4]{3}}+x^2} \, dx+\frac{1}{96} \int \frac{1}{\sqrt{\frac{2}{3}}+\frac{2^{3/4} x}{\sqrt [4]{3}}+x^2} \, dx+\frac{\int \frac{\frac{2^{3/4}}{\sqrt [4]{3}}+2 x}{-\sqrt{\frac{2}{3}}-\frac{2^{3/4} x}{\sqrt [4]{3}}-x^2} \, dx}{32\ 6^{3/4}}+\frac{\int \frac{\frac{2^{3/4}}{\sqrt [4]{3}}-2 x}{-\sqrt{\frac{2}{3}}+\frac{2^{3/4} x}{\sqrt [4]{3}}-x^2} \, dx}{32\ 6^{3/4}}\\ &=\frac{x^3}{8 \left (2+3 x^4\right )}+\frac{\log \left (\sqrt{6}-6^{3/4} x+3 x^2\right )}{32\ 6^{3/4}}-\frac{\log \left (\sqrt{6}+6^{3/4} x+3 x^2\right )}{32\ 6^{3/4}}+\frac{\operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1-\sqrt [4]{6} x\right )}{16\ 6^{3/4}}-\frac{\operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1+\sqrt [4]{6} x\right )}{16\ 6^{3/4}}\\ &=\frac{x^3}{8 \left (2+3 x^4\right )}-\frac{\tan ^{-1}\left (1-\sqrt [4]{6} x\right )}{16\ 6^{3/4}}+\frac{\tan ^{-1}\left (1+\sqrt [4]{6} x\right )}{16\ 6^{3/4}}+\frac{\log \left (\sqrt{6}-6^{3/4} x+3 x^2\right )}{32\ 6^{3/4}}-\frac{\log \left (\sqrt{6}+6^{3/4} x+3 x^2\right )}{32\ 6^{3/4}}\\ \end{align*}
Mathematica [A] time = 0.0693535, size = 107, normalized size = 0.95 \[ \frac{1}{192} \left (\frac{24 x^3}{3 x^4+2}+\sqrt [4]{6} \log \left (\sqrt{6} x^2-2 \sqrt [4]{6} x+2\right )-\sqrt [4]{6} \log \left (\sqrt{6} x^2+2 \sqrt [4]{6} x+2\right )-2 \sqrt [4]{6} \tan ^{-1}\left (1-\sqrt [4]{6} x\right )+2 \sqrt [4]{6} \tan ^{-1}\left (\sqrt [4]{6} x+1\right )\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.005, size = 125, normalized size = 1.1 \begin{align*}{\frac{{x}^{3}}{24\,{x}^{4}+16}}+{\frac{\sqrt{3}{6}^{{\frac{3}{4}}}\sqrt{2}}{576}\arctan \left ({\frac{\sqrt{2}\sqrt{3}{6}^{{\frac{3}{4}}}x}{6}}+1 \right ) }+{\frac{\sqrt{3}{6}^{{\frac{3}{4}}}\sqrt{2}}{576}\arctan \left ({\frac{\sqrt{2}\sqrt{3}{6}^{{\frac{3}{4}}}x}{6}}-1 \right ) }+{\frac{\sqrt{3}{6}^{{\frac{3}{4}}}\sqrt{2}}{1152}\ln \left ({ \left ({x}^{2}-{\frac{\sqrt{3}\sqrt [4]{6}x\sqrt{2}}{3}}+{\frac{\sqrt{6}}{3}} \right ) \left ({x}^{2}+{\frac{\sqrt{3}\sqrt [4]{6}x\sqrt{2}}{3}}+{\frac{\sqrt{6}}{3}} \right ) ^{-1}} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.46434, size = 182, normalized size = 1.61 \begin{align*} \frac{x^{3}}{8 \,{\left (3 \, x^{4} + 2\right )}} + \frac{1}{96} \cdot 3^{\frac{1}{4}} 2^{\frac{1}{4}} \arctan \left (\frac{1}{6} \cdot 3^{\frac{3}{4}} 2^{\frac{1}{4}}{\left (2 \, \sqrt{3} x + 3^{\frac{1}{4}} 2^{\frac{3}{4}}\right )}\right ) + \frac{1}{96} \cdot 3^{\frac{1}{4}} 2^{\frac{1}{4}} \arctan \left (\frac{1}{6} \cdot 3^{\frac{3}{4}} 2^{\frac{1}{4}}{\left (2 \, \sqrt{3} x - 3^{\frac{1}{4}} 2^{\frac{3}{4}}\right )}\right ) - \frac{1}{192} \cdot 3^{\frac{1}{4}} 2^{\frac{1}{4}} \log \left (\sqrt{3} x^{2} + 3^{\frac{1}{4}} 2^{\frac{3}{4}} x + \sqrt{2}\right ) + \frac{1}{192} \cdot 3^{\frac{1}{4}} 2^{\frac{1}{4}} \log \left (\sqrt{3} x^{2} - 3^{\frac{1}{4}} 2^{\frac{3}{4}} x + \sqrt{2}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.8375, size = 630, normalized size = 5.58 \begin{align*} -\frac{4 \cdot 54^{\frac{3}{4}} \sqrt{2}{\left (3 \, x^{4} + 2\right )} \arctan \left (-\frac{1}{18} \cdot 54^{\frac{3}{4}} \sqrt{2} x + \frac{1}{54} \cdot 54^{\frac{3}{4}} \sqrt{2} \sqrt{9 \, x^{2} + 3 \cdot 54^{\frac{1}{4}} \sqrt{2} x + 3 \, \sqrt{6}} - 1\right ) + 4 \cdot 54^{\frac{3}{4}} \sqrt{2}{\left (3 \, x^{4} + 2\right )} \arctan \left (-\frac{1}{18} \cdot 54^{\frac{3}{4}} \sqrt{2} x + \frac{1}{54} \cdot 54^{\frac{3}{4}} \sqrt{2} \sqrt{9 \, x^{2} - 3 \cdot 54^{\frac{1}{4}} \sqrt{2} x + 3 \, \sqrt{6}} + 1\right ) + 54^{\frac{3}{4}} \sqrt{2}{\left (3 \, x^{4} + 2\right )} \log \left (9 \, x^{2} + 3 \cdot 54^{\frac{1}{4}} \sqrt{2} x + 3 \, \sqrt{6}\right ) - 54^{\frac{3}{4}} \sqrt{2}{\left (3 \, x^{4} + 2\right )} \log \left (9 \, x^{2} - 3 \cdot 54^{\frac{1}{4}} \sqrt{2} x + 3 \, \sqrt{6}\right ) - 432 \, x^{3}}{3456 \,{\left (3 \, x^{4} + 2\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 0.565553, size = 97, normalized size = 0.86 \begin{align*} \frac{x^{3}}{24 x^{4} + 16} + \frac{\sqrt [4]{6} \log{\left (x^{2} - \frac{6^{\frac{3}{4}} x}{3} + \frac{\sqrt{6}}{3} \right )}}{192} - \frac{\sqrt [4]{6} \log{\left (x^{2} + \frac{6^{\frac{3}{4}} x}{3} + \frac{\sqrt{6}}{3} \right )}}{192} + \frac{\sqrt [4]{6} \operatorname{atan}{\left (\sqrt [4]{6} x - 1 \right )}}{96} + \frac{\sqrt [4]{6} \operatorname{atan}{\left (\sqrt [4]{6} x + 1 \right )}}{96} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.15869, size = 147, normalized size = 1.3 \begin{align*} \frac{x^{3}}{8 \,{\left (3 \, x^{4} + 2\right )}} + \frac{1}{96} \cdot 6^{\frac{1}{4}} \arctan \left (\frac{3}{4} \, \sqrt{2} \left (\frac{2}{3}\right )^{\frac{3}{4}}{\left (2 \, x + \sqrt{2} \left (\frac{2}{3}\right )^{\frac{1}{4}}\right )}\right ) + \frac{1}{96} \cdot 6^{\frac{1}{4}} \arctan \left (\frac{3}{4} \, \sqrt{2} \left (\frac{2}{3}\right )^{\frac{3}{4}}{\left (2 \, x - \sqrt{2} \left (\frac{2}{3}\right )^{\frac{1}{4}}\right )}\right ) - \frac{1}{192} \cdot 6^{\frac{1}{4}} \log \left (x^{2} + \sqrt{2} \left (\frac{2}{3}\right )^{\frac{1}{4}} x + \sqrt{\frac{2}{3}}\right ) + \frac{1}{192} \cdot 6^{\frac{1}{4}} \log \left (x^{2} - \sqrt{2} \left (\frac{2}{3}\right )^{\frac{1}{4}} x + \sqrt{\frac{2}{3}}\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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