Integrand size = 24, antiderivative size = 87 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\frac {128}{3 \sqrt {3} e \sqrt {2-e x}}+\frac {32 \sqrt {2-e x}}{\sqrt {3} e}-\frac {8 (2-e x)^{3/2}}{3 \sqrt {3} e}+\frac {2 (2-e x)^{5/2}}{15 \sqrt {3} e} \]
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Time = 0.02 (sec) , antiderivative size = 87, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {641, 45} \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\frac {2 (2-e x)^{5/2}}{15 \sqrt {3} e}-\frac {8 (2-e x)^{3/2}}{3 \sqrt {3} e}+\frac {32 \sqrt {2-e x}}{\sqrt {3} e}+\frac {128}{3 \sqrt {3} e \sqrt {2-e x}} \]
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Rule 45
Rule 641
Rubi steps \begin{align*} \text {integral}& = \int \frac {(2+e x)^3}{(6-3 e x)^{3/2}} \, dx \\ & = \int \left (\frac {64}{(6-3 e x)^{3/2}}-\frac {16}{\sqrt {6-3 e x}}+\frac {4}{3} \sqrt {6-3 e x}-\frac {1}{27} (6-3 e x)^{3/2}\right ) \, dx \\ & = \frac {128}{3 \sqrt {3} e \sqrt {2-e x}}+\frac {32 \sqrt {2-e x}}{\sqrt {3} e}-\frac {8 (2-e x)^{3/2}}{3 \sqrt {3} e}+\frac {2 (2-e x)^{5/2}}{15 \sqrt {3} e} \\ \end{align*}
Time = 0.52 (sec) , antiderivative size = 59, normalized size of antiderivative = 0.68 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\frac {2 \sqrt {4-e^2 x^2} \left (-728+172 e x+14 e^2 x^2+e^3 x^3\right )}{15 e (-2+e x) \sqrt {6+3 e x}} \]
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Time = 2.22 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.59
method | result | size |
gosper | \(\frac {2 \left (e x -2\right ) \left (e^{3} x^{3}+14 x^{2} e^{2}+172 e x -728\right ) \left (e x +2\right )^{\frac {3}{2}}}{5 e \left (-3 x^{2} e^{2}+12\right )^{\frac {3}{2}}}\) | \(51\) |
default | \(\frac {2 \sqrt {-3 x^{2} e^{2}+12}\, \left (e^{3} x^{3}+14 x^{2} e^{2}+172 e x -728\right )}{45 \sqrt {e x +2}\, \left (e x -2\right ) e}\) | \(53\) |
risch | \(-\frac {2 \left (x^{2} e^{2}+16 e x +204\right ) \left (e x -2\right ) \sqrt {\frac {-3 x^{2} e^{2}+12}{e x +2}}\, \sqrt {e x +2}}{15 e \sqrt {-3 e x +6}\, \sqrt {-3 x^{2} e^{2}+12}}+\frac {128 \sqrt {\frac {-3 x^{2} e^{2}+12}{e x +2}}\, \sqrt {e x +2}}{3 e \sqrt {-3 e x +6}\, \sqrt {-3 x^{2} e^{2}+12}}\) | \(124\) |
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Time = 0.28 (sec) , antiderivative size = 55, normalized size of antiderivative = 0.63 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\frac {2 \, {\left (e^{3} x^{3} + 14 \, e^{2} x^{2} + 172 \, e x - 728\right )} \sqrt {-3 \, e^{2} x^{2} + 12} \sqrt {e x + 2}}{45 \, {\left (e^{3} x^{2} - 4 \, e\right )}} \]
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Timed out. \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\text {Timed out} \]
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Result contains complex when optimal does not.
Time = 0.30 (sec) , antiderivative size = 36, normalized size of antiderivative = 0.41 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=\frac {2 i \, \sqrt {3} {\left (e^{3} x^{3} + 14 \, e^{2} x^{2} + 172 \, e x - 728\right )}}{45 \, \sqrt {e x - 2} e} \]
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Time = 0.30 (sec) , antiderivative size = 79, normalized size of antiderivative = 0.91 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=-\frac {1024 \, \sqrt {3}}{45 \, e} + \frac {128 \, \sqrt {3}}{9 \, \sqrt {-e x + 2} e} + \frac {2 \, \sqrt {3} {\left ({\left (e x - 2\right )}^{2} \sqrt {-e x + 2} e^{4} - 20 \, {\left (-e x + 2\right )}^{\frac {3}{2}} e^{4} + 240 \, \sqrt {-e x + 2} e^{4}\right )}}{45 \, e^{5}} \]
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Time = 10.31 (sec) , antiderivative size = 80, normalized size of antiderivative = 0.92 \[ \int \frac {(2+e x)^{9/2}}{\left (12-3 e^2 x^2\right )^{3/2}} \, dx=-\frac {\sqrt {12-3\,e^2\,x^2}\,\left (\frac {2\,x^3\,\sqrt {e\,x+2}}{45}-\frac {1456\,\sqrt {e\,x+2}}{45\,e^3}+\frac {344\,x\,\sqrt {e\,x+2}}{45\,e^2}+\frac {28\,x^2\,\sqrt {e\,x+2}}{45\,e}\right )}{\frac {4}{e^2}-x^2} \]
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