Optimal. Leaf size=126 \[ -\frac {4 a^2 x \sqrt [4]{a-b x^2}}{77 b^2}-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {8 a^{7/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \sin ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{77 b^{5/2} \left (a-b x^2\right )^{3/4}} \]
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Rubi [A]
time = 0.03, antiderivative size = 126, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 4, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {285, 327, 239,
238} \begin {gather*} \frac {8 a^{7/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \text {ArcSin}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{77 b^{5/2} \left (a-b x^2\right )^{3/4}}-\frac {4 a^2 x \sqrt [4]{a-b x^2}}{77 b^2}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b} \end {gather*}
Antiderivative was successfully verified.
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Rule 238
Rule 239
Rule 285
Rule 327
Rubi steps
\begin {align*} \int x^4 \sqrt [4]{a-b x^2} \, dx &=\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {1}{11} a \int \frac {x^4}{\left (a-b x^2\right )^{3/4}} \, dx\\ &=-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {\left (6 a^2\right ) \int \frac {x^2}{\left (a-b x^2\right )^{3/4}} \, dx}{77 b}\\ &=-\frac {4 a^2 x \sqrt [4]{a-b x^2}}{77 b^2}-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {\left (4 a^3\right ) \int \frac {1}{\left (a-b x^2\right )^{3/4}} \, dx}{77 b^2}\\ &=-\frac {4 a^2 x \sqrt [4]{a-b x^2}}{77 b^2}-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {\left (4 a^3 \left (1-\frac {b x^2}{a}\right )^{3/4}\right ) \int \frac {1}{\left (1-\frac {b x^2}{a}\right )^{3/4}} \, dx}{77 b^2 \left (a-b x^2\right )^{3/4}}\\ &=-\frac {4 a^2 x \sqrt [4]{a-b x^2}}{77 b^2}-\frac {2 a x^3 \sqrt [4]{a-b x^2}}{77 b}+\frac {2}{11} x^5 \sqrt [4]{a-b x^2}+\frac {8 a^{7/2} \left (1-\frac {b x^2}{a}\right )^{3/4} F\left (\left .\frac {1}{2} \sin ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )\right |2\right )}{77 b^{5/2} \left (a-b x^2\right )^{3/4}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 7.02, size = 95, normalized size = 0.75 \begin {gather*} -\frac {2 x \sqrt [4]{a-b x^2} \left (\sqrt [4]{1-\frac {b x^2}{a}} \left (6 a^2+a b x^2-7 b^2 x^4\right )-6 a^2 \, _2F_1\left (-\frac {1}{4},\frac {1}{2};\frac {3}{2};\frac {b x^2}{a}\right )\right )}{77 b^2 \sqrt [4]{1-\frac {b x^2}{a}}} \end {gather*}
Antiderivative was successfully verified.
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Maple [F]
time = 0.01, size = 0, normalized size = 0.00 \[\int x^{4} \left (-b \,x^{2}+a \right )^{\frac {1}{4}}\, dx\]
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]
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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Sympy [C] Result contains complex when optimal does not.
time = 0.51, size = 31, normalized size = 0.25 \begin {gather*} \frac {\sqrt [4]{a} x^{5} {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{4}, \frac {5}{2} \\ \frac {7}{2} \end {matrix}\middle | {\frac {b x^{2} e^{2 i \pi }}{a}} \right )}}{5} \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 = -0.01 \begin {gather*} \int x^4\,{\left (a-b\,x^2\right )}^{1/4} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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