Optimal. Leaf size=226 \[ \frac{3 \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}+1\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}-\frac{x^3}{8 c \left (a+c x^4\right )^2} \]
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Rubi [A] time = 0.14016, antiderivative size = 226, normalized size of antiderivative = 1., number of steps used = 11, number of rules used = 8, integrand size = 13, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.615, Rules used = {288, 290, 297, 1162, 617, 204, 1165, 628} \[ \frac{3 \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}+1\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}-\frac{x^3}{8 c \left (a+c x^4\right )^2} \]
Antiderivative was successfully verified.
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Rule 288
Rule 290
Rule 297
Rule 1162
Rule 617
Rule 204
Rule 1165
Rule 628
Rubi steps
\begin{align*} \int \frac{x^6}{\left (a+c x^4\right )^3} \, dx &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 \int \frac{x^2}{\left (a+c x^4\right )^2} \, dx}{8 c}\\ &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}+\frac{3 \int \frac{x^2}{a+c x^4} \, dx}{32 a c}\\ &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}-\frac{3 \int \frac{\sqrt{a}-\sqrt{c} x^2}{a+c x^4} \, dx}{64 a c^{3/2}}+\frac{3 \int \frac{\sqrt{a}+\sqrt{c} x^2}{a+c x^4} \, dx}{64 a c^{3/2}}\\ &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}+\frac{3 \int \frac{1}{\frac{\sqrt{a}}{\sqrt{c}}-\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{c}}+x^2} \, dx}{128 a c^2}+\frac{3 \int \frac{1}{\frac{\sqrt{a}}{\sqrt{c}}+\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{c}}+x^2} \, dx}{128 a c^2}+\frac{3 \int \frac{\frac{\sqrt{2} \sqrt [4]{a}}{\sqrt [4]{c}}+2 x}{-\frac{\sqrt{a}}{\sqrt{c}}-\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{c}}-x^2} \, dx}{128 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \int \frac{\frac{\sqrt{2} \sqrt [4]{a}}{\sqrt [4]{c}}-2 x}{-\frac{\sqrt{a}}{\sqrt{c}}+\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{c}}-x^2} \, dx}{128 \sqrt{2} a^{5/4} c^{7/4}}\\ &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}+\frac{3 \log \left (\sqrt{a}-\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \log \left (\sqrt{a}+\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1-\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1+\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}\\ &=-\frac{x^3}{8 c \left (a+c x^4\right )^2}+\frac{3 x^3}{32 a c \left (a+c x^4\right )}-\frac{3 \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \tan ^{-1}\left (1+\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{64 \sqrt{2} a^{5/4} c^{7/4}}+\frac{3 \log \left (\sqrt{a}-\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}-\frac{3 \log \left (\sqrt{a}+\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{c} x^2\right )}{128 \sqrt{2} a^{5/4} c^{7/4}}\\ \end{align*}
Mathematica [A] time = 0.0997865, size = 207, normalized size = 0.92 \[ \frac{\frac{24 c^{3/4} x^3}{a^2+a c x^4}+\frac{3 \sqrt{2} \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{a^{5/4}}-\frac{3 \sqrt{2} \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{c} x+\sqrt{a}+\sqrt{c} x^2\right )}{a^{5/4}}-\frac{6 \sqrt{2} \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}\right )}{a^{5/4}}+\frac{6 \sqrt{2} \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{c} x}{\sqrt [4]{a}}+1\right )}{a^{5/4}}-\frac{32 c^{3/4} x^3}{\left (a+c x^4\right )^2}}{256 c^{7/4}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.01, size = 164, normalized size = 0.7 \begin{align*}{\frac{1}{ \left ( c{x}^{4}+a \right ) ^{2}} \left ({\frac{3\,{x}^{7}}{32\,a}}-{\frac{{x}^{3}}{32\,c}} \right ) }+{\frac{3\,\sqrt{2}}{256\,{c}^{2}a}\ln \left ({ \left ({x}^{2}-\sqrt [4]{{\frac{a}{c}}}x\sqrt{2}+\sqrt{{\frac{a}{c}}} \right ) \left ({x}^{2}+\sqrt [4]{{\frac{a}{c}}}x\sqrt{2}+\sqrt{{\frac{a}{c}}} \right ) ^{-1}} \right ){\frac{1}{\sqrt [4]{{\frac{a}{c}}}}}}+{\frac{3\,\sqrt{2}}{128\,{c}^{2}a}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{c}}}}}}+1 \right ){\frac{1}{\sqrt [4]{{\frac{a}{c}}}}}}+{\frac{3\,\sqrt{2}}{128\,{c}^{2}a}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{c}}}}}}-1 \right ){\frac{1}{\sqrt [4]{{\frac{a}{c}}}}}} \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 [A] time = 1.75761, size = 583, normalized size = 2.58 \begin{align*} \frac{12 \, c x^{7} - 4 \, a x^{3} - 12 \,{\left (a c^{3} x^{8} + 2 \, a^{2} c^{2} x^{4} + a^{3} c\right )} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{1}{4}} \arctan \left (-a c^{2} x \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{1}{4}} + \sqrt{-a^{3} c^{3} \sqrt{-\frac{1}{a^{5} c^{7}}} + x^{2}} a c^{2} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{1}{4}}\right ) + 3 \,{\left (a c^{3} x^{8} + 2 \, a^{2} c^{2} x^{4} + a^{3} c\right )} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{1}{4}} \log \left (a^{4} c^{5} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{3}{4}} + x\right ) - 3 \,{\left (a c^{3} x^{8} + 2 \, a^{2} c^{2} x^{4} + a^{3} c\right )} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{1}{4}} \log \left (-a^{4} c^{5} \left (-\frac{1}{a^{5} c^{7}}\right )^{\frac{3}{4}} + x\right )}{128 \,{\left (a c^{3} x^{8} + 2 \, a^{2} c^{2} x^{4} + a^{3} c\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 1.57168, size = 71, normalized size = 0.31 \begin{align*} \frac{- a x^{3} + 3 c x^{7}}{32 a^{3} c + 64 a^{2} c^{2} x^{4} + 32 a c^{3} x^{8}} + \operatorname{RootSum}{\left (268435456 t^{4} a^{5} c^{7} + 81, \left ( t \mapsto t \log{\left (\frac{2097152 t^{3} a^{4} c^{5}}{27} + x \right )} \right )\right )} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.25747, size = 282, normalized size = 1.25 \begin{align*} \frac{3 \, c x^{7} - a x^{3}}{32 \,{\left (c x^{4} + a\right )}^{2} a c} + \frac{3 \, \sqrt{2} \left (a c^{3}\right )^{\frac{3}{4}} \arctan \left (\frac{\sqrt{2}{\left (2 \, x + \sqrt{2} \left (\frac{a}{c}\right )^{\frac{1}{4}}\right )}}{2 \, \left (\frac{a}{c}\right )^{\frac{1}{4}}}\right )}{128 \, a^{2} c^{4}} + \frac{3 \, \sqrt{2} \left (a c^{3}\right )^{\frac{3}{4}} \arctan \left (\frac{\sqrt{2}{\left (2 \, x - \sqrt{2} \left (\frac{a}{c}\right )^{\frac{1}{4}}\right )}}{2 \, \left (\frac{a}{c}\right )^{\frac{1}{4}}}\right )}{128 \, a^{2} c^{4}} - \frac{3 \, \sqrt{2} \left (a c^{3}\right )^{\frac{3}{4}} \log \left (x^{2} + \sqrt{2} x \left (\frac{a}{c}\right )^{\frac{1}{4}} + \sqrt{\frac{a}{c}}\right )}{256 \, a^{2} c^{4}} + \frac{3 \, \sqrt{2} \left (a c^{3}\right )^{\frac{3}{4}} \log \left (x^{2} - \sqrt{2} x \left (\frac{a}{c}\right )^{\frac{1}{4}} + \sqrt{\frac{a}{c}}\right )}{256 \, a^{2} c^{4}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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