Integrand size = 61, antiderivative size = 26 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 \left (3+\frac {1}{9} e^{6-x-\frac {1}{2} x (5+x)}\right )}{x} \]
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Time = 0.46 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.73, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.082, Rules used = {12, 2306, 6820, 14, 2326} \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 e^{-\frac {x^2}{2}-\frac {7 x}{2}+6} \left (2 x^2+7 x\right )}{9 x^2 (2 x+7)}+\frac {12}{x} \]
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Rule 12
Rule 14
Rule 2306
Rule 2326
Rule 6820
Rubi steps \begin{align*} \text {integral}& = \frac {1}{9} \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{x^2} \, dx \\ & = \frac {1}{9} \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{x^3} \, dx \\ & = \frac {1}{9} \int \frac {2 \left (-54-e^{6-\frac {1}{2} x (7+x)} \left (2+7 x+2 x^2\right )\right )}{x^2} \, dx \\ & = \frac {2}{9} \int \frac {-54-e^{6-\frac {1}{2} x (7+x)} \left (2+7 x+2 x^2\right )}{x^2} \, dx \\ & = \frac {2}{9} \int \left (-\frac {54}{x^2}+\frac {e^{6-\frac {7 x}{2}-\frac {x^2}{2}} \left (-2-7 x-2 x^2\right )}{x^2}\right ) \, dx \\ & = \frac {12}{x}+\frac {2}{9} \int \frac {e^{6-\frac {7 x}{2}-\frac {x^2}{2}} \left (-2-7 x-2 x^2\right )}{x^2} \, dx \\ & = \frac {12}{x}+\frac {4 e^{6-\frac {7 x}{2}-\frac {x^2}{2}} \left (7 x+2 x^2\right )}{9 x^2 (7+2 x)} \\ \end{align*}
Time = 1.24 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.81 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 \left (27+e^{6-\frac {1}{2} x (7+x)}\right )}{9 x} \]
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Time = 0.07 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.88
method | result | size |
risch | \(\frac {12}{x}+\frac {4 \,{\mathrm e}^{-\frac {1}{2} x^{2}-\frac {7}{2} x +6}}{9 x}\) | \(23\) |
default | \(\frac {12}{x}+\frac {4 \,{\mathrm e}^{-\frac {1}{2} x^{2}-\frac {7}{2} x +6}}{9 x}\) | \(24\) |
parts | \(\frac {12}{x}+\frac {4 \,{\mathrm e}^{-\frac {1}{2} x^{2}-\frac {7}{2} x +6}}{9 x}\) | \(24\) |
norman | \(\frac {\left (\frac {4 x}{9}+12 \,{\mathrm e}^{\ln \left (x \right )+\frac {x^{2}}{2}+\frac {7 x}{2}-6}\right ) {\mathrm e}^{-\frac {1}{2} x^{2}-\frac {7}{2} x +6}}{x^{2}}\) | \(39\) |
parallelrisch | \(\frac {\left (4 x +108 \,{\mathrm e}^{\ln \left (x \right )+\frac {x^{2}}{2}+\frac {7 x}{2}-6}\right ) {\mathrm e}^{-\frac {1}{2} x^{2}-\frac {7}{2} x +6}}{9 x^{2}}\) | \(40\) |
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Time = 0.24 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.42 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 \, {\left (x + 27 \, e^{\left (\frac {1}{2} \, x^{2} + \frac {7}{2} \, x + \log \left (x\right ) - 6\right )}\right )} e^{\left (-\frac {1}{2} \, x^{2} - \frac {7}{2} \, x - \log \left (x\right ) + 6\right )}}{9 \, x} \]
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Time = 0.06 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.77 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 e^{- \frac {x^{2}}{2} - \frac {7 x}{2} + 6}}{9 x} + \frac {12}{x} \]
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\[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\int { -\frac {2 \, {\left (2 \, x^{3} + 7 \, x^{2} + 2 \, x + 54 \, e^{\left (\frac {1}{2} \, x^{2} + \frac {7}{2} \, x + \log \left (x\right ) - 6\right )}\right )} e^{\left (-\frac {1}{2} \, x^{2} - \frac {7}{2} \, x - \log \left (x\right ) + 6\right )}}{9 \, x^{2}} \,d x } \]
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Time = 0.27 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.69 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4 \, {\left (e^{\left (-\frac {1}{2} \, x^{2} - \frac {7}{2} \, x + 6\right )} + 27\right )}}{9 \, x} \]
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Time = 13.71 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.69 \[ \int \frac {e^{\frac {1}{2} \left (12-7 x-x^2-2 \log (x)\right )} \left (-108 e^{\frac {1}{2} \left (-12+7 x+x^2+2 \log (x)\right )}-4 x-14 x^2-4 x^3\right )}{9 x^2} \, dx=\frac {4\,\left ({\mathrm {e}}^{-\frac {x^2}{2}-\frac {7\,x}{2}+6}+27\right )}{9\,x} \]
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