Integrand size = 72, antiderivative size = 29 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \]
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\[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=\int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (1+2 x^2\right )-4\ 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \left (2+\log \left (25 x^2\right )\right )\right ) \, dx \\ & = -\left (4 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \left (2+\log \left (25 x^2\right )\right ) \, dx\right )+\int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (1+2 x^2\right ) \, dx \\ & = -\left (4 \int \left (2\ 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}}+25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \log \left (25 x^2\right )\right ) \, dx\right )+\int \left (e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}}+2 e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x^2\right ) \, dx \\ & = 2 \int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x^2 \, dx-4 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \log \left (25 x^2\right ) \, dx-8 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx+\int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \, dx \\ & = 2 \int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x^2 \, dx+4 \int \frac {2 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx}{x} \, dx-8 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx-\left (4 \log \left (25 x^2\right )\right ) \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx+\int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \, dx \\ & = 2 \int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x^2 \, dx-8 \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx+8 \int \frac {\int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx}{x} \, dx-\left (4 \log \left (25 x^2\right )\right ) \int 25^{\frac {4 x}{e^2}} e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \left (x^2\right )^{\frac {4 x}{e^2}} \, dx+\int e^{-5+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \, dx \\ \end{align*}
Time = 1.48 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.97 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=e^{-5+x^2-390625^{\frac {x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} x \]
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Time = 4.03 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.83
method | result | size |
risch | \(x \,{\mathrm e}^{-\left (25 x^{2}\right )^{4 \,{\mathrm e}^{-2} x}+x^{2}-5}\) | \(24\) |
parallelrisch | \(x \,{\mathrm e}^{-{\mathrm e}^{4 x \ln \left (25 x^{2}\right ) {\mathrm e}^{-2}}+x^{2}-5}\) | \(27\) |
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Time = 0.55 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.72 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=x e^{\left (x^{2} - \left (25 \, x^{2}\right )^{4 \, x e^{\left (-2\right )}} - 5\right )} \]
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Time = 23.83 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.76 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=x e^{x^{2} - e^{\frac {4 x \log {\left (25 x^{2} \right )}}{e^{2}}} - 5} \]
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Time = 0.40 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.90 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=x e^{\left (x^{2} - e^{\left (8 \, x e^{\left (-2\right )} \log \left (5\right ) + 8 \, x e^{\left (-2\right )} \log \left (x\right )\right )} - 5\right )} \]
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\[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=\int { -{\left (4 \, {\left (x \log \left (25 \, x^{2}\right ) + 2 \, x\right )} \left (25 \, x^{2}\right )^{4 \, x e^{\left (-2\right )}} - {\left (2 \, x^{2} + 1\right )} e^{2}\right )} e^{\left (x^{2} - \left (25 \, x^{2}\right )^{4 \, x e^{\left (-2\right )}} - 7\right )} \,d x } \]
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Time = 12.89 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.72 \[ \int e^{-7+x^2-25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}}} \left (e^2 \left (1+2 x^2\right )+25^{\frac {4 x}{e^2}} \left (x^2\right )^{\frac {4 x}{e^2}} \left (-8 x-4 x \log \left (25 x^2\right )\right )\right ) \, dx=x\,{\mathrm {e}}^{x^2}\,{\mathrm {e}}^{-5}\,{\mathrm {e}}^{-{\left (390625\,x^8\right )}^{x\,{\mathrm {e}}^{-2}}} \]
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