Optimal. Leaf size=45 \[ \frac {2 \sqrt {x+x^5}}{x}-2 \sqrt {a} \tanh ^{-1}\left (\frac {\sqrt {a} \sqrt {x+x^5}}{1+x^4}\right ) \]
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Rubi [F]
time = 0.85, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps
used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {}
\begin {gather*} \int \frac {\left (1+x^4\right ) \left (-1+3 x^4\right )}{x \left (1-a x+x^4\right ) \sqrt {x+x^5}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {\left (1+x^4\right ) \left (-1+3 x^4\right )}{x \left (1-a x+x^4\right ) \sqrt {x+x^5}} \, dx &=\frac {\left (\sqrt {x} \sqrt {1+x^4}\right ) \int \frac {\sqrt {1+x^4} \left (-1+3 x^4\right )}{x^{3/2} \left (1-a x+x^4\right )} \, dx}{\sqrt {x+x^5}}\\ &=\frac {\left (2 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {\sqrt {1+x^8} \left (-1+3 x^8\right )}{x^2 \left (1-a x^2+x^8\right )} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}\\ &=\frac {\left (2 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \left (-\frac {\sqrt {1+x^8}}{x^2}+\frac {\left (a-4 x^6\right ) \sqrt {1+x^8}}{-1+a x^2-x^8}\right ) \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}\\ &=-\frac {\left (2 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {\sqrt {1+x^8}}{x^2} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}+\frac {\left (2 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {\left (a-4 x^6\right ) \sqrt {1+x^8}}{-1+a x^2-x^8} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}\\ &=\frac {2 \left (1+x^4\right )}{\sqrt {x+x^5}}+\frac {\left (2 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \left (\frac {a \sqrt {1+x^8}}{-1+a x^2-x^8}+\frac {4 x^6 \sqrt {1+x^8}}{1-a x^2+x^8}\right ) \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}-\frac {\left (8 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {x^6}{\sqrt {1+x^8}} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}\\ &=\frac {2 \left (1+x^4\right )}{\sqrt {x+x^5}}-\frac {8 x^4 \sqrt {1+x^4} \, _2F_1\left (\frac {1}{2},\frac {7}{8};\frac {15}{8};-x^4\right )}{7 \sqrt {x+x^5}}+\frac {\left (8 \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {x^6 \sqrt {1+x^8}}{1-a x^2+x^8} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}+\frac {\left (2 a \sqrt {x} \sqrt {1+x^4}\right ) \text {Subst}\left (\int \frac {\sqrt {1+x^8}}{-1+a x^2-x^8} \, dx,x,\sqrt {x}\right )}{\sqrt {x+x^5}}\\ \end {align*}
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Mathematica [F]
time = 30.36, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\left (1+x^4\right ) \left (-1+3 x^4\right )}{x \left (1-a x+x^4\right ) \sqrt {x+x^5}} \, dx \end {gather*}
Verification is not applicable to the result.
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Maple [F]
time = 0.01, size = 0, normalized size = 0.00 \[\int \frac {\left (x^{4}+1\right ) \left (3 x^{4}-1\right )}{x \left (x^{4}-a x +1\right ) \sqrt {x^{5}+x}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 1.11, size = 146, normalized size = 3.24 \begin {gather*} \left [\frac {\sqrt {a} x \log \left (-\frac {x^{8} + 6 \, a x^{5} + a^{2} x^{2} + 2 \, x^{4} - 4 \, \sqrt {x^{5} + x} {\left (x^{4} + a x + 1\right )} \sqrt {a} + 6 \, a x + 1}{x^{8} - 2 \, a x^{5} + a^{2} x^{2} + 2 \, x^{4} - 2 \, a x + 1}\right ) + 4 \, \sqrt {x^{5} + x}}{2 \, x}, \frac {\sqrt {-a} x \arctan \left (\frac {2 \, \sqrt {x^{5} + x} \sqrt {-a}}{x^{4} + a x + 1}\right ) + 2 \, \sqrt {x^{5} + x}}{x}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.71, size = 50, normalized size = 1.11 \begin {gather*} \frac {2\,\sqrt {x^5+x}}{x}+\sqrt {a}\,\ln \left (\frac {a\,x-2\,\sqrt {a}\,\sqrt {x^5+x}+x^4+1}{x^4-a\,x+1}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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