Integrand size = 24, antiderivative size = 87 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=-\frac {384 \sqrt {3} (2-e x)^{5/2}}{5 e}+\frac {288 \sqrt {3} (2-e x)^{7/2}}{7 e}-\frac {8 \sqrt {3} (2-e x)^{9/2}}{e}+\frac {6 \sqrt {3} (2-e x)^{11/2}}{11 e} \]
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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} \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=\frac {6 \sqrt {3} (2-e x)^{11/2}}{11 e}-\frac {8 \sqrt {3} (2-e x)^{9/2}}{e}+\frac {288 \sqrt {3} (2-e x)^{7/2}}{7 e}-\frac {384 \sqrt {3} (2-e x)^{5/2}}{5 e} \]
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Rule 45
Rule 641
Rubi steps \begin{align*} \text {integral}& = \int (6-3 e x)^{3/2} (2+e x)^3 \, dx \\ & = \int \left (64 (6-3 e x)^{3/2}-16 (6-3 e x)^{5/2}+\frac {4}{3} (6-3 e x)^{7/2}-\frac {1}{27} (6-3 e x)^{9/2}\right ) \, dx \\ & = -\frac {384 \sqrt {3} (2-e x)^{5/2}}{5 e}+\frac {288 \sqrt {3} (2-e x)^{7/2}}{7 e}-\frac {8 \sqrt {3} (2-e x)^{9/2}}{e}+\frac {6 \sqrt {3} (2-e x)^{11/2}}{11 e} \\ \end{align*}
Time = 0.37 (sec) , antiderivative size = 59, normalized size of antiderivative = 0.68 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=-\frac {2 (-2+e x)^2 \sqrt {12-3 e^2 x^2} \left (4264+3020 e x+910 e^2 x^2+105 e^3 x^3\right )}{385 e \sqrt {2+e x}} \]
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Time = 2.22 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.60
method | result | size |
gosper | \(\frac {2 \left (e x -2\right ) \left (105 e^{3} x^{3}+910 x^{2} e^{2}+3020 e x +4264\right ) \left (-3 x^{2} e^{2}+12\right )^{\frac {3}{2}}}{1155 e \left (e x +2\right )^{\frac {3}{2}}}\) | \(52\) |
default | \(-\frac {2 \sqrt {-3 x^{2} e^{2}+12}\, \left (e x -2\right )^{2} \left (105 e^{3} x^{3}+910 x^{2} e^{2}+3020 e x +4264\right )}{385 \sqrt {e x +2}\, e}\) | \(54\) |
risch | \(\frac {6 \sqrt {\frac {-3 x^{2} e^{2}+12}{e x +2}}\, \sqrt {e x +2}\, \left (105 e^{5} x^{5}+490 e^{4} x^{4}-200 e^{3} x^{3}-4176 x^{2} e^{2}-4976 e x +17056\right ) \left (e x -2\right )}{385 \sqrt {-3 x^{2} e^{2}+12}\, e \sqrt {-3 e x +6}}\) | \(96\) |
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none
Time = 0.36 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.80 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=-\frac {2 \, {\left (105 \, e^{5} x^{5} + 490 \, e^{4} x^{4} - 200 \, e^{3} x^{3} - 4176 \, e^{2} x^{2} - 4976 \, e x + 17056\right )} \sqrt {-3 \, e^{2} x^{2} + 12} \sqrt {e x + 2}}{385 \, {\left (e^{2} x + 2 \, e\right )}} \]
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\[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=3 \sqrt {3} \left (\int 8 \sqrt {e x + 2} \sqrt {- e^{2} x^{2} + 4}\, dx + \int 4 e x \sqrt {e x + 2} \sqrt {- e^{2} x^{2} + 4}\, dx + \int \left (- 2 e^{2} x^{2} \sqrt {e x + 2} \sqrt {- e^{2} x^{2} + 4}\right )\, dx + \int \left (- e^{3} x^{3} \sqrt {e x + 2} \sqrt {- e^{2} x^{2} + 4}\right )\, dx\right ) \]
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Result contains complex when optimal does not.
Time = 0.29 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.94 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=\frac {2 \, {\left (-105 i \, \sqrt {3} e^{5} x^{5} - 490 i \, \sqrt {3} e^{4} x^{4} + 200 i \, \sqrt {3} e^{3} x^{3} + 4176 i \, \sqrt {3} e^{2} x^{2} + 4976 i \, \sqrt {3} e x - 17056 i \, \sqrt {3}\right )} {\left (e x + 2\right )} \sqrt {e x - 2}}{385 \, {\left (e^{2} x + 2 \, e\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 207 vs. \(2 (65) = 130\).
Time = 0.29 (sec) , antiderivative size = 207, normalized size of antiderivative = 2.38 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=-\frac {2 \, \sqrt {3} {\left (e^{4} {\left (\frac {315 \, {\left (e x - 2\right )}^{5} \sqrt {-e x + 2} + 3080 \, {\left (e x - 2\right )}^{4} \sqrt {-e x + 2} + 11880 \, {\left (e x - 2\right )}^{3} \sqrt {-e x + 2} + 22176 \, {\left (e x - 2\right )}^{2} \sqrt {-e x + 2} - 18480 \, {\left (-e x + 2\right )}^{\frac {3}{2}}}{e^{4}} + \frac {27008}{e^{4}}\right )} + 44 \, e^{3} {\left (\frac {35 \, {\left (e x - 2\right )}^{4} \sqrt {-e x + 2} + 270 \, {\left (e x - 2\right )}^{3} \sqrt {-e x + 2} + 756 \, {\left (e x - 2\right )}^{2} \sqrt {-e x + 2} - 840 \, {\left (-e x + 2\right )}^{\frac {3}{2}}}{e^{3}} - \frac {832}{e^{3}}\right )} - 11088 \, {\left (e x - 2\right )}^{2} \sqrt {-e x + 2} + 55440 \, {\left (-e x + 2\right )}^{\frac {3}{2}} - 88704\right )}}{1155 \, e} \]
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Time = 10.06 (sec) , antiderivative size = 53, normalized size of antiderivative = 0.61 \[ \int (2+e x)^{3/2} \left (12-3 e^2 x^2\right )^{3/2} \, dx=-\frac {2\,\sqrt {12-3\,e^2\,x^2}\,{\left (e\,x-2\right )}^2\,\left (105\,e^3\,x^3+910\,e^2\,x^2+3020\,e\,x+4264\right )}{385\,e\,\sqrt {e\,x+2}} \]
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