Integrand size = 45, antiderivative size = 22 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=2-x^2-e^{-\frac {12 e^x}{x}} x^4 \]
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\[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=\int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int 2 e^{-\frac {12 e^x}{x}} x \left (-e^{\frac {12 e^x}{x}}-6 e^x x-2 x^2+6 e^x x^2\right ) \, dx \\ & = 2 \int e^{-\frac {12 e^x}{x}} x \left (-e^{\frac {12 e^x}{x}}-6 e^x x-2 x^2+6 e^x x^2\right ) \, dx \\ & = 2 \int \left (6 e^{-\frac {12 e^x}{x}+x} (-1+x) x^2-e^{-\frac {12 e^x}{x}} x \left (e^{\frac {12 e^x}{x}}+2 x^2\right )\right ) \, dx \\ & = -\left (2 \int e^{-\frac {12 e^x}{x}} x \left (e^{\frac {12 e^x}{x}}+2 x^2\right ) \, dx\right )+12 \int e^{-\frac {12 e^x}{x}+x} (-1+x) x^2 \, dx \\ & = -\left (2 \int \left (x+2 e^{-\frac {12 e^x}{x}} x^3\right ) \, dx\right )+12 \int \left (-e^{-\frac {12 e^x}{x}+x} x^2+e^{-\frac {12 e^x}{x}+x} x^3\right ) \, dx \\ & = -x^2-4 \int e^{-\frac {12 e^x}{x}} x^3 \, dx-12 \int e^{-\frac {12 e^x}{x}+x} x^2 \, dx+12 \int e^{-\frac {12 e^x}{x}+x} x^3 \, dx \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.95 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=-x^2 \left (1+e^{-\frac {12 e^x}{x}} x^2\right ) \]
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Time = 1.14 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.91
method | result | size |
risch | \(-x^{2}-x^{4} {\mathrm e}^{-\frac {12 \,{\mathrm e}^{x}}{x}}\) | \(20\) |
norman | \(\left (-x^{4}-x^{2} {\mathrm e}^{\frac {12 \,{\mathrm e}^{x}}{x}}\right ) {\mathrm e}^{-\frac {12 \,{\mathrm e}^{x}}{x}}\) | \(33\) |
parallelrisch | \(\frac {\left (-x^{5}-{\mathrm e}^{\frac {12 \,{\mathrm e}^{x}}{x}} x^{3}\right ) {\mathrm e}^{-\frac {12 \,{\mathrm e}^{x}}{x}}}{x}\) | \(36\) |
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Time = 0.23 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.18 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=-{\left (x^{4} + x^{2} e^{\left (\frac {12 \, e^{x}}{x}\right )}\right )} e^{\left (-\frac {12 \, e^{x}}{x}\right )} \]
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Time = 0.13 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.68 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=- x^{4} e^{- \frac {12 e^{x}}{x}} - x^{2} \]
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Time = 0.23 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.86 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=-x^{4} e^{\left (-\frac {12 \, e^{x}}{x}\right )} - x^{2} \]
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Time = 0.25 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.36 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=-{\left (x^{4} e^{\left (\frac {x^{2} - 12 \, e^{x}}{x}\right )} + x^{2} e^{x}\right )} e^{\left (-x\right )} \]
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Time = 10.24 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.86 \[ \int e^{-\frac {12 e^x}{x}} \left (-2 e^{\frac {12 e^x}{x}} x-4 x^3+e^x \left (-12 x^2+12 x^3\right )\right ) \, dx=-x^4\,{\mathrm {e}}^{-\frac {12\,{\mathrm {e}}^x}{x}}-x^2 \]
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