Integrand size = 25, antiderivative size = 231 \[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\frac {\sqrt {3} \arctan \left (\frac {5 \sqrt {3} \sqrt [3]{1-x^3}}{2 \sqrt [3]{2} 5^{2/3}-2 \sqrt [3]{2} 5^{2/3} x+5 \sqrt [3]{1-x^3}}\right )}{\sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2} 5^{2/3}+\sqrt [3]{2} 5^{2/3} x+5 \sqrt [3]{1-x^3}\right )}{\sqrt [3]{2} 5^{2/3}}-\frac {\log \left (2^{2/3} \sqrt [3]{5}-2\ 2^{2/3} \sqrt [3]{5} x+2^{2/3} \sqrt [3]{5} x^2+\left (\sqrt [3]{2} 5^{2/3}-\sqrt [3]{2} 5^{2/3} x\right ) \sqrt [3]{1-x^3}+5 \left (1-x^3\right )^{2/3}\right )}{2 \sqrt [3]{2} 5^{2/3}} \]
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Result contains higher order function than in optimal. Order 6 vs. order 3 in optimal.
Time = 0.90 (sec) , antiderivative size = 630, normalized size of antiderivative = 2.73, number of steps used = 20, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.360, Rules used = {6860, 2181, 384, 524, 455, 57, 631, 210, 31} \[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=-\frac {\left (5-\sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3-\sqrt {5}\right )^3}\right )}{5 \left (3-\sqrt {5}\right )^2}-\frac {\left (5+\sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3+\sqrt {5}\right )^3}\right )}{5 \left (3+\sqrt {5}\right )^2}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}+\frac {\arctan \left (\frac {\frac {2^{2/3} \sqrt [3]{1-x^3}}{\sqrt [3]{5+2 \sqrt {5}}}+1}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}+\frac {\arctan \left (\frac {10^{2/3} \sqrt [3]{5+2 \sqrt {5}} \sqrt [3]{1-x^3}+5}{5 \sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\log \left (x^3-4 \sqrt {5}+9\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (x^3+4 \sqrt {5}+9\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (8 x^3+8 \left (9-4 \sqrt {5}\right )\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (8 x^3+\left (3+\sqrt {5}\right )^3\right )}{6 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5-2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5+2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{1-x^3}-\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{1-x^3}-\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x\right )}{2 \sqrt [3]{2} 5^{2/3}} \]
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Rule 31
Rule 57
Rule 210
Rule 384
Rule 455
Rule 524
Rule 631
Rule 2181
Rule 6860
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {1-\frac {1}{\sqrt {5}}}{\left (3-\sqrt {5}+2 x\right ) \sqrt [3]{1-x^3}}+\frac {1+\frac {1}{\sqrt {5}}}{\left (3+\sqrt {5}+2 x\right ) \sqrt [3]{1-x^3}}\right ) \, dx \\ & = \frac {1}{5} \left (5-\sqrt {5}\right ) \int \frac {1}{\left (3-\sqrt {5}+2 x\right ) \sqrt [3]{1-x^3}} \, dx+\frac {1}{5} \left (5+\sqrt {5}\right ) \int \frac {1}{\left (3+\sqrt {5}+2 x\right ) \sqrt [3]{1-x^3}} \, dx \\ & = \frac {1}{5} \left (5-\sqrt {5}\right ) \int \left (-\frac {2 \left (-7+3 \sqrt {5}\right )}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )}+\frac {2 \left (-3+\sqrt {5}\right ) x}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )}+\frac {4 x^2}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )}\right ) \, dx+\frac {1}{5} \left (5+\sqrt {5}\right ) \int \left (\frac {\left (3+\sqrt {5}\right )^2}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}-\frac {2 \left (3+\sqrt {5}\right ) x}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}+\frac {4 x^2}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}\right ) \, dx \\ & = \frac {1}{5} \left (4 \left (25-11 \sqrt {5}\right )\right ) \int \frac {1}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )} \, dx-\frac {1}{5} \left (8 \left (5-2 \sqrt {5}\right )\right ) \int \frac {x}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )} \, dx+\frac {1}{5} \left (4 \left (5-\sqrt {5}\right )\right ) \int \frac {x^2}{\sqrt [3]{1-x^3} \left (\left (3-\sqrt {5}\right )^3+8 x^3\right )} \, dx+\frac {1}{5} \left (4 \left (5+\sqrt {5}\right )\right ) \int \frac {x^2}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )} \, dx-\frac {1}{5} \left (8 \left (5+2 \sqrt {5}\right )\right ) \int \frac {x}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )} \, dx+\frac {1}{5} \left (4 \left (25+11 \sqrt {5}\right )\right ) \int \frac {1}{\sqrt [3]{1-x^3} \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )} \, dx \\ & = -\frac {4 \left (5-2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3-\sqrt {5}\right )^3}\right )}{5 \left (3-\sqrt {5}\right )^3}-\frac {4 \left (5+2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3+\sqrt {5}\right )^3}\right )}{5 \left (3+\sqrt {5}\right )^3}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\log \left (8 \left (9-4 \sqrt {5}\right )+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {1}{15} \left (4 \left (5-\sqrt {5}\right )\right ) \text {Subst}\left (\int \frac {1}{\sqrt [3]{1-x} \left (\left (3-\sqrt {5}\right )^3+8 x\right )} \, dx,x,x^3\right )+\frac {1}{15} \left (4 \left (5+\sqrt {5}\right )\right ) \text {Subst}\left (\int \frac {1}{\sqrt [3]{1-x} \left (\left (3+\sqrt {5}\right )^3+8 x\right )} \, dx,x,x^3\right ) \\ & = -\frac {4 \left (5-2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3-\sqrt {5}\right )^3}\right )}{5 \left (3-\sqrt {5}\right )^3}-\frac {4 \left (5+2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3+\sqrt {5}\right )^3}\right )}{5 \left (3+\sqrt {5}\right )^3}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\log \left (9-4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (9+4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (8 \left (9-4 \sqrt {5}\right )+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}-\frac {\text {Subst}\left (\int \frac {1}{\sqrt [3]{2 \left (5-2 \sqrt {5}\right )}-x} \, dx,x,\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}-\frac {\text {Subst}\left (\int \frac {1}{\sqrt [3]{2 \left (5+2 \sqrt {5}\right )}-x} \, dx,x,\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {1}{20} \left (5-\sqrt {5}\right ) \text {Subst}\left (\int \frac {1}{\left (2 \left (5-2 \sqrt {5}\right )\right )^{2/3}+\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x+x^2} \, dx,x,\sqrt [3]{1-x^3}\right )+\frac {1}{20} \left (5+\sqrt {5}\right ) \text {Subst}\left (\int \frac {1}{\left (2 \left (5+2 \sqrt {5}\right )\right )^{2/3}+\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x+x^2} \, dx,x,\sqrt [3]{1-x^3}\right ) \\ & = -\frac {4 \left (5-2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3-\sqrt {5}\right )^3}\right )}{5 \left (3-\sqrt {5}\right )^3}-\frac {4 \left (5+2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3+\sqrt {5}\right )^3}\right )}{5 \left (3+\sqrt {5}\right )^3}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\log \left (9-4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (9+4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (8 \left (9-4 \sqrt {5}\right )+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5-2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5+2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}-\frac {\text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1+\frac {2^{2/3} \sqrt [3]{1-x^3}}{\sqrt [3]{5+2 \sqrt {5}}}\right )}{\sqrt [3]{2} 5^{2/3}}-\frac {\text {Subst}\left (\int \frac {1}{-3-x^2} \, dx,x,1+2^{2/3} \sqrt [3]{\left (-1-\frac {2}{\sqrt {5}}\right ) \left (-1+x^3\right )}\right )}{\sqrt [3]{2} 5^{2/3}} \\ & = -\frac {4 \left (5-2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3-\sqrt {5}\right )^3}\right )}{5 \left (3-\sqrt {5}\right )^3}-\frac {4 \left (5+2 \sqrt {5}\right ) x^2 \operatorname {AppellF1}\left (\frac {2}{3},\frac {1}{3},1,\frac {5}{3},x^3,-\frac {8 x^3}{\left (3+\sqrt {5}\right )^3}\right )}{5 \left (3+\sqrt {5}\right )^3}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\arctan \left (\frac {1-\frac {2 \sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x}{\sqrt [3]{1-x^3}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}+\frac {\arctan \left (\frac {1+\frac {2^{2/3} \sqrt [3]{1-x^3}}{\sqrt [3]{5+2 \sqrt {5}}}}{\sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}+\frac {\arctan \left (\frac {5+10^{2/3} \sqrt [3]{5+2 \sqrt {5}} \sqrt [3]{1-x^3}}{5 \sqrt {3}}\right )}{\sqrt [3]{2} \sqrt {3} 5^{2/3}}-\frac {\log \left (9-4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (9+4 \sqrt {5}+x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (8 \left (9-4 \sqrt {5}\right )+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}-\frac {\log \left (\left (3+\sqrt {5}\right )^3+8 x^3\right )}{6 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5-2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (\sqrt [3]{2 \left (5+2 \sqrt {5}\right )}-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5-2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}}+\frac {\log \left (-\sqrt [3]{2 \left (5+2 \sqrt {5}\right )} x-\sqrt [3]{1-x^3}\right )}{2 \sqrt [3]{2} 5^{2/3}} \\ \end{align*}
Time = 1.30 (sec) , antiderivative size = 199, normalized size of antiderivative = 0.86 \[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\frac {2 \sqrt {3} \arctan \left (\frac {5 \sqrt {3} \sqrt [3]{1-x^3}}{2 \sqrt [3]{2} 5^{2/3}-2 \sqrt [3]{2} 5^{2/3} x+5 \sqrt [3]{1-x^3}}\right )+2 \log \left (-\sqrt [3]{2} 5^{2/3}+\sqrt [3]{2} 5^{2/3} x+5 \sqrt [3]{1-x^3}\right )-\log \left (2^{2/3} \sqrt [3]{5}-2\ 2^{2/3} \sqrt [3]{5} x+2^{2/3} \sqrt [3]{5} x^2-5^{2/3} (-1+x) \sqrt [3]{2-2 x^3}+5 \left (1-x^3\right )^{2/3}\right )}{2 \sqrt [3]{2} 5^{2/3}} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 5.08 (sec) , antiderivative size = 778, normalized size of antiderivative = 3.37
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none
Time = 5.58 (sec) , antiderivative size = 324, normalized size of antiderivative = 1.40 \[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\frac {1}{30} \cdot 50^{\frac {1}{6}} \sqrt {3} \sqrt {2} \arctan \left (\frac {50^{\frac {1}{6}} \sqrt {3} {\left (2 \cdot 50^{\frac {2}{3}} \sqrt {2} {\left (3 \, x^{4} + 8 \, x^{3} + 3 \, x^{2} + 8 \, x + 3\right )} {\left (-x^{3} + 1\right )}^{\frac {2}{3}} + 50^{\frac {1}{3}} \sqrt {2} {\left (41 \, x^{6} - 11 \, x^{5} + 50 \, x^{4} - 35 \, x^{3} + 50 \, x^{2} - 11 \, x + 41\right )} - 20 \, \sqrt {2} {\left (11 \, x^{5} - 15 \, x^{4} + 15 \, x^{3} - 15 \, x^{2} + 15 \, x - 11\right )} {\left (-x^{3} + 1\right )}^{\frac {1}{3}}\right )}}{30 \, {\left (19 \, x^{6} - 69 \, x^{5} + 30 \, x^{4} - 85 \, x^{3} + 30 \, x^{2} - 69 \, x + 19\right )}}\right ) - \frac {1}{300} \cdot 50^{\frac {2}{3}} \log \left (\frac {50^{\frac {2}{3}} {\left (-x^{3} + 1\right )}^{\frac {2}{3}} {\left (3 \, x^{2} - x + 3\right )} + 50^{\frac {1}{3}} {\left (11 \, x^{4} - 4 \, x^{3} + 11 \, x^{2} - 4 \, x + 11\right )} - 20 \, {\left (2 \, x^{3} - x^{2} + x - 2\right )} {\left (-x^{3} + 1\right )}^{\frac {1}{3}}}{x^{4} + 6 \, x^{3} + 11 \, x^{2} + 6 \, x + 1}\right ) + \frac {1}{150} \cdot 50^{\frac {2}{3}} \log \left (\frac {50^{\frac {2}{3}} {\left (x^{2} + 3 \, x + 1\right )} - 10 \cdot 50^{\frac {1}{3}} {\left (-x^{3} + 1\right )}^{\frac {1}{3}} {\left (x - 1\right )} - 50 \, {\left (-x^{3} + 1\right )}^{\frac {2}{3}}}{x^{2} + 3 \, x + 1}\right ) \]
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\[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\int \frac {x + 1}{\sqrt [3]{- \left (x - 1\right ) \left (x^{2} + x + 1\right )} \left (x^{2} + 3 x + 1\right )}\, dx \]
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\[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\int { \frac {x + 1}{{\left (-x^{3} + 1\right )}^{\frac {1}{3}} {\left (x^{2} + 3 \, x + 1\right )}} \,d x } \]
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\[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\int { \frac {x + 1}{{\left (-x^{3} + 1\right )}^{\frac {1}{3}} {\left (x^{2} + 3 \, x + 1\right )}} \,d x } \]
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Timed out. \[ \int \frac {1+x}{\left (1+3 x+x^2\right ) \sqrt [3]{1-x^3}} \, dx=\int \frac {x+1}{{\left (1-x^3\right )}^{1/3}\,\left (x^2+3\,x+1\right )} \,d x \]
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