Integrand size = 13, antiderivative size = 102 \[ \int x^4 \sqrt [3]{1+x^3} \, dx=\frac {1}{18} \sqrt [3]{1+x^3} \left (x^2+3 x^5\right )+\frac {\arctan \left (\frac {\sqrt {3} x}{x+2 \sqrt [3]{1+x^3}}\right )}{9 \sqrt {3}}+\frac {1}{27} \log \left (-x+\sqrt [3]{1+x^3}\right )-\frac {1}{54} \log \left (x^2+x \sqrt [3]{1+x^3}+\left (1+x^3\right )^{2/3}\right ) \]
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Time = 0.01 (sec) , antiderivative size = 81, normalized size of antiderivative = 0.79, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {285, 327, 337} \[ \int x^4 \sqrt [3]{1+x^3} \, dx=\frac {\arctan \left (\frac {\frac {2 x}{\sqrt [3]{x^3+1}}+1}{\sqrt {3}}\right )}{9 \sqrt {3}}+\frac {1}{18} \log \left (x-\sqrt [3]{x^3+1}\right )+\frac {1}{6} \sqrt [3]{x^3+1} x^5+\frac {1}{18} \sqrt [3]{x^3+1} x^2 \]
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Rule 285
Rule 327
Rule 337
Rubi steps \begin{align*} \text {integral}& = \frac {1}{6} x^5 \sqrt [3]{1+x^3}+\frac {1}{6} \int \frac {x^4}{\left (1+x^3\right )^{2/3}} \, dx \\ & = \frac {1}{18} x^2 \sqrt [3]{1+x^3}+\frac {1}{6} x^5 \sqrt [3]{1+x^3}-\frac {1}{9} \int \frac {x}{\left (1+x^3\right )^{2/3}} \, dx \\ & = \frac {1}{18} x^2 \sqrt [3]{1+x^3}+\frac {1}{6} x^5 \sqrt [3]{1+x^3}+\frac {\arctan \left (\frac {1+\frac {2 x}{\sqrt [3]{1+x^3}}}{\sqrt {3}}\right )}{9 \sqrt {3}}+\frac {1}{18} \log \left (x-\sqrt [3]{1+x^3}\right ) \\ \end{align*}
Time = 0.16 (sec) , antiderivative size = 98, normalized size of antiderivative = 0.96 \[ \int x^4 \sqrt [3]{1+x^3} \, dx=\frac {1}{54} \left (3 \sqrt [3]{1+x^3} \left (x^2+3 x^5\right )+2 \sqrt {3} \arctan \left (\frac {\sqrt {3} x}{x+2 \sqrt [3]{1+x^3}}\right )+2 \log \left (-x+\sqrt [3]{1+x^3}\right )-\log \left (x^2+x \sqrt [3]{1+x^3}+\left (1+x^3\right )^{2/3}\right )\right ) \]
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Result contains higher order function than in optimal. Order 5 vs. order 3.
Time = 1.04 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.17
method | result | size |
meijerg | \(\frac {x^{5} \operatorname {hypergeom}\left (\left [-\frac {1}{3}, \frac {5}{3}\right ], \left [\frac {8}{3}\right ], -x^{3}\right )}{5}\) | \(17\) |
risch | \(\frac {x^{2} \left (3 x^{3}+1\right ) \left (x^{3}+1\right )^{\frac {1}{3}}}{18}-\frac {x^{2} \operatorname {hypergeom}\left (\left [\frac {2}{3}, \frac {2}{3}\right ], \left [\frac {5}{3}\right ], -x^{3}\right )}{18}\) | \(37\) |
pseudoelliptic | \(\frac {9 x^{5} \left (x^{3}+1\right )^{\frac {1}{3}}+3 x^{2} \left (x^{3}+1\right )^{\frac {1}{3}}-2 \sqrt {3}\, \arctan \left (\frac {\sqrt {3}\, \left (x +2 \left (x^{3}+1\right )^{\frac {1}{3}}\right )}{3 x}\right )-\ln \left (\frac {x^{2}+x \left (x^{3}+1\right )^{\frac {1}{3}}+\left (x^{3}+1\right )^{\frac {2}{3}}}{x^{2}}\right )+2 \ln \left (\frac {-x +\left (x^{3}+1\right )^{\frac {1}{3}}}{x}\right )}{54 \left (x^{2}+x \left (x^{3}+1\right )^{\frac {1}{3}}+\left (x^{3}+1\right )^{\frac {2}{3}}\right )^{2} {\left (-x +\left (x^{3}+1\right )^{\frac {1}{3}}\right )}^{2}}\) | \(133\) |
trager | \(\frac {x^{2} \left (3 x^{3}+1\right ) \left (x^{3}+1\right )^{\frac {1}{3}}}{18}+\frac {\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \ln \left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )^{2} x^{3}-3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}} x -3 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{2}-2 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{3}+x^{3}-\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )+1\right )}{27}-\frac {\ln \left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )^{2} x^{3}+3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}} x +3 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{2}+4 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{3}+3 x \left (x^{3}+1\right )^{\frac {2}{3}}+3 x^{2} \left (x^{3}+1\right )^{\frac {1}{3}}+4 x^{3}+\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )+2\right ) \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )}{27}-\frac {\ln \left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )^{2} x^{3}+3 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) \left (x^{3}+1\right )^{\frac {2}{3}} x +3 \left (x^{3}+1\right )^{\frac {1}{3}} \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{2}+4 \operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right ) x^{3}+3 x \left (x^{3}+1\right )^{\frac {2}{3}}+3 x^{2} \left (x^{3}+1\right )^{\frac {1}{3}}+4 x^{3}+\operatorname {RootOf}\left (\textit {\_Z}^{2}+\textit {\_Z} +1\right )+2\right )}{27}\) | \(313\) |
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Time = 0.28 (sec) , antiderivative size = 94, normalized size of antiderivative = 0.92 \[ \int x^4 \sqrt [3]{1+x^3} \, dx=-\frac {1}{27} \, \sqrt {3} \arctan \left (\frac {\sqrt {3} x + 2 \, \sqrt {3} {\left (x^{3} + 1\right )}^{\frac {1}{3}}}{3 \, x}\right ) + \frac {1}{18} \, {\left (3 \, x^{5} + x^{2}\right )} {\left (x^{3} + 1\right )}^{\frac {1}{3}} + \frac {1}{27} \, \log \left (-\frac {x - {\left (x^{3} + 1\right )}^{\frac {1}{3}}}{x}\right ) - \frac {1}{54} \, \log \left (\frac {x^{2} + {\left (x^{3} + 1\right )}^{\frac {1}{3}} x + {\left (x^{3} + 1\right )}^{\frac {2}{3}}}{x^{2}}\right ) \]
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Result contains complex when optimal does not.
Time = 1.00 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.30 \[ \int x^4 \sqrt [3]{1+x^3} \, dx=\frac {x^{5} \Gamma \left (\frac {5}{3}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{3}, \frac {5}{3} \\ \frac {8}{3} \end {matrix}\middle | {x^{3} e^{i \pi }} \right )}}{3 \Gamma \left (\frac {8}{3}\right )} \]
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Time = 0.27 (sec) , antiderivative size = 121, normalized size of antiderivative = 1.19 \[ \int x^4 \sqrt [3]{1+x^3} \, dx=-\frac {1}{27} \, \sqrt {3} \arctan \left (\frac {1}{3} \, \sqrt {3} {\left (\frac {2 \, {\left (x^{3} + 1\right )}^{\frac {1}{3}}}{x} + 1\right )}\right ) - \frac {\frac {2 \, {\left (x^{3} + 1\right )}^{\frac {1}{3}}}{x} + \frac {{\left (x^{3} + 1\right )}^{\frac {4}{3}}}{x^{4}}}{18 \, {\left (\frac {2 \, {\left (x^{3} + 1\right )}}{x^{3}} - \frac {{\left (x^{3} + 1\right )}^{2}}{x^{6}} - 1\right )}} - \frac {1}{54} \, \log \left (\frac {{\left (x^{3} + 1\right )}^{\frac {1}{3}}}{x} + \frac {{\left (x^{3} + 1\right )}^{\frac {2}{3}}}{x^{2}} + 1\right ) + \frac {1}{27} \, \log \left (\frac {{\left (x^{3} + 1\right )}^{\frac {1}{3}}}{x} - 1\right ) \]
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\[ \int x^4 \sqrt [3]{1+x^3} \, dx=\int { {\left (x^{3} + 1\right )}^{\frac {1}{3}} x^{4} \,d x } \]
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Timed out. \[ \int x^4 \sqrt [3]{1+x^3} \, dx=\int x^4\,{\left (x^3+1\right )}^{1/3} \,d x \]
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