Optimal. Leaf size=209 \[ \frac {\text {ArcTan}\left (\frac {\sqrt {2} \sqrt [4]{2 a b-c} x \sqrt [4]{b^2+c x^4+a^2 x^8}}{\sqrt {2 a b-c} x^2-\sqrt {b^2+c x^4+a^2 x^8}}\right )}{2 \sqrt {2} \sqrt [4]{2 a b-c}}-\frac {\tanh ^{-1}\left (\frac {\frac {\sqrt [4]{2 a b-c} x^2}{\sqrt {2}}+\frac {\sqrt {b^2+c x^4+a^2 x^8}}{\sqrt {2} \sqrt [4]{2 a b-c}}}{x \sqrt [4]{b^2+c x^4+a^2 x^8}}\right )}{2 \sqrt {2} \sqrt [4]{2 a b-c}} \]
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Rubi [F]
time = 0.40, 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 {-b+a x^4}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx \end {gather*}
Verification is not applicable to the result.
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Rubi steps
\begin {align*} \int \frac {-b+a x^4}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx &=\int \left (\frac {1}{\sqrt [4]{b^2+c x^4+a^2 x^8}}-\frac {2 b}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}}\right ) \, dx\\ &=-\left ((2 b) \int \frac {1}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx\right )+\int \frac {1}{\sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx\\ &=-\left ((2 b) \int \frac {1}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx\right )+\frac {\left (\sqrt [4]{1+\frac {2 a^2 x^4}{c-\sqrt {-4 a^2 b^2+c^2}}} \sqrt [4]{1+\frac {2 a^2 x^4}{c+\sqrt {-4 a^2 b^2+c^2}}}\right ) \int \frac {1}{\sqrt [4]{1+\frac {2 a^2 x^4}{c-\sqrt {-4 a^2 b^2+c^2}}} \sqrt [4]{1+\frac {2 a^2 x^4}{c+\sqrt {-4 a^2 b^2+c^2}}}} \, dx}{\sqrt [4]{b^2+c x^4+a^2 x^8}}\\ &=\frac {x \sqrt [4]{1+\frac {2 a^2 x^4}{c-\sqrt {-4 a^2 b^2+c^2}}} \sqrt [4]{1+\frac {2 a^2 x^4}{c+\sqrt {-4 a^2 b^2+c^2}}} F_1\left (\frac {1}{4};\frac {1}{4},\frac {1}{4};\frac {5}{4};-\frac {2 a^2 x^4}{c-\sqrt {-4 a^2 b^2+c^2}},-\frac {2 a^2 x^4}{c+\sqrt {-4 a^2 b^2+c^2}}\right )}{\sqrt [4]{b^2+c x^4+a^2 x^8}}-(2 b) \int \frac {1}{\left (b+a x^4\right ) \sqrt [4]{b^2+c x^4+a^2 x^8}} \, dx\\ \end {align*}
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Mathematica [A]
time = 1.98, size = 184, normalized size = 0.88 \begin {gather*} \frac {\text {ArcTan}\left (\frac {\sqrt {2} \sqrt [4]{2 a b-c} x \sqrt [4]{b^2+c x^4+a^2 x^8}}{\sqrt {2 a b-c} x^2-\sqrt {b^2+c x^4+a^2 x^8}}\right )-\tanh ^{-1}\left (\frac {\sqrt {2 a b-c} x^2+\sqrt {b^2+c x^4+a^2 x^8}}{\sqrt {2} \sqrt [4]{2 a b-c} x \sqrt [4]{b^2+c x^4+a^2 x^8}}\right )}{2 \sqrt {2} \sqrt [4]{2 a b-c}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.03, size = 0, normalized size = 0.00 \[\int \frac {a \,x^{4}-b}{\left (a \,x^{4}+b \right ) \left (a^{2} x^{8}+c \,x^{4}+b^{2}\right )^{\frac {1}{4}}}\, dx\]
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 [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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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {a x^{4} - b}{\left (a x^{4} + b\right ) \sqrt [4]{a^{2} x^{8} + b^{2} + c x^{4}}}\, dx \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 [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int -\frac {b-a\,x^4}{\left (a\,x^4+b\right )\,{\left (a^2\,x^8+b^2+c\,x^4\right )}^{1/4}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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