Integrand size = 45, antiderivative size = 18 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=2358774 \log \left (5+\frac {x}{1+e^{-x} x}\right ) \]
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\[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=\int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {2358774 e^x \left (e^x+x^2\right )}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx \\ & = 2358774 \int \frac {e^x \left (e^x+x^2\right )}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx \\ & = 2358774 \int \left (-\frac {e^x (-1+x)}{x \left (e^x+x\right )}+\frac {e^x \left (-5+5 x+x^2\right )}{x \left (5 e^x+5 x+e^x x\right )}\right ) \, dx \\ & = -\left (2358774 \int \frac {e^x (-1+x)}{x \left (e^x+x\right )} \, dx\right )+2358774 \int \frac {e^x \left (-5+5 x+x^2\right )}{x \left (5 e^x+5 x+e^x x\right )} \, dx \\ & = 2358774 \int \left (\frac {5 e^x}{5 e^x+5 x+e^x x}-\frac {5 e^x}{x \left (5 e^x+5 x+e^x x\right )}+\frac {e^x x}{5 e^x+5 x+e^x x}\right ) \, dx-2358774 \text {Subst}\left (\int \frac {1}{1+x} \, dx,x,\frac {e^x}{x}\right ) \\ & = -2358774 \log \left (1+\frac {e^x}{x}\right )+2358774 \int \frac {e^x x}{5 e^x+5 x+e^x x} \, dx+11793870 \int \frac {e^x}{5 e^x+5 x+e^x x} \, dx-11793870 \int \frac {e^x}{x \left (5 e^x+5 x+e^x x\right )} \, dx \\ \end{align*}
Time = 4.81 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.44 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=2358774 \left (-\log \left (e^x+x\right )+\log \left (5 e^x+5 x+e^x x\right )\right ) \]
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Time = 0.06 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.33
method | result | size |
norman | \(-2358774 \ln \left ({\mathrm e}^{x}+x \right )+2358774 \ln \left ({\mathrm e}^{x} x +5 x +5 \,{\mathrm e}^{x}\right )\) | \(24\) |
parallelrisch | \(-2358774 \ln \left ({\mathrm e}^{x}+x \right )+2358774 \ln \left ({\mathrm e}^{x} x +5 x +5 \,{\mathrm e}^{x}\right )\) | \(24\) |
risch | \(2358774 \ln \left (5+x \right )+2358774 \ln \left ({\mathrm e}^{x}+\frac {5 x}{5+x}\right )-2358774 \ln \left ({\mathrm e}^{x}+x \right )\) | \(29\) |
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Time = 0.31 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.83 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=-2358774 \, \log \left (x + e^{x}\right ) + 2358774 \, \log \left (x + 5\right ) + 2358774 \, \log \left (\frac {{\left (x + 5\right )} e^{x} + 5 \, x}{x + 5}\right ) \]
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Exception generated. \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=\text {Exception raised: PolynomialError} \]
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Time = 0.24 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.83 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=-2358774 \, \log \left (x + e^{x}\right ) + 2358774 \, \log \left (x + 5\right ) + 2358774 \, \log \left (\frac {{\left (x + 5\right )} e^{x} + 5 \, x}{x + 5}\right ) \]
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Time = 0.31 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.28 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=2358774 \, \log \left (x e^{x} + 5 \, x + 5 \, e^{x}\right ) - 2358774 \, \log \left (x + e^{x}\right ) \]
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Time = 0.14 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.28 \[ \int \frac {2358774 e^{2 x}+2358774 e^x x^2}{5 x^2+e^{2 x} (5+x)+e^x \left (10 x+x^2\right )} \, dx=2358774\,\ln \left (5\,x+5\,{\mathrm {e}}^x+x\,{\mathrm {e}}^x\right )-2358774\,\ln \left (x+{\mathrm {e}}^x\right ) \]
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