Integrand size = 96, antiderivative size = 28 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\log \left (-x+\frac {x}{3 \left (-e^x-e^{2 x}+5 x\right )}\right ) \]
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\[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {17+3 e^x-30 x}{1+3 e^x+3 e^{2 x}-15 x}+\frac {5+e^x-10 x}{e^x+e^{2 x}-5 x}+\frac {1}{x}\right ) \, dx \\ & = \log (x)-\int \frac {17+3 e^x-30 x}{1+3 e^x+3 e^{2 x}-15 x} \, dx+\int \frac {5+e^x-10 x}{e^x+e^{2 x}-5 x} \, dx \\ & = \log (x)-\int \left (\frac {17}{1+3 e^x+3 e^{2 x}-15 x}+\frac {3 e^x}{1+3 e^x+3 e^{2 x}-15 x}-\frac {30 x}{1+3 e^x+3 e^{2 x}-15 x}\right ) \, dx+\int \left (\frac {5}{e^x+e^{2 x}-5 x}+\frac {e^x}{e^x+e^{2 x}-5 x}-\frac {10 x}{e^x+e^{2 x}-5 x}\right ) \, dx \\ & = \log (x)-3 \int \frac {e^x}{1+3 e^x+3 e^{2 x}-15 x} \, dx+5 \int \frac {1}{e^x+e^{2 x}-5 x} \, dx-10 \int \frac {x}{e^x+e^{2 x}-5 x} \, dx-17 \int \frac {1}{1+3 e^x+3 e^{2 x}-15 x} \, dx+30 \int \frac {x}{1+3 e^x+3 e^{2 x}-15 x} \, dx+\int \frac {e^x}{e^x+e^{2 x}-5 x} \, dx \\ \end{align*}
Time = 1.21 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.82 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=2 \text {arctanh}\left (1+6 e^x+6 e^{2 x}-30 x\right )+\log (x) \]
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Time = 0.10 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.04
method | result | size |
risch | \(\ln \left (x \right )+\ln \left ({\mathrm e}^{2 x}-5 x +{\mathrm e}^{x}+\frac {1}{3}\right )-\ln \left ({\mathrm e}^{2 x}-5 x +{\mathrm e}^{x}\right )\) | \(29\) |
parallelrisch | \(\ln \left (x \right )-\ln \left (-\frac {{\mathrm e}^{2 x}}{5}+x -\frac {{\mathrm e}^{x}}{5}\right )+\ln \left (-\frac {{\mathrm e}^{2 x}}{5}+x -\frac {{\mathrm e}^{x}}{5}-\frac {1}{15}\right )\) | \(33\) |
norman | \(-\ln \left (-{\mathrm e}^{2 x}+5 x -{\mathrm e}^{x}\right )+\ln \left (x \right )+\ln \left (-3 \,{\mathrm e}^{2 x}+15 x -3 \,{\mathrm e}^{x}-1\right )\) | \(37\) |
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Time = 0.26 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.14 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\log \left (x\right ) - \log \left (-5 \, x + e^{\left (2 \, x\right )} + e^{x}\right ) + \log \left (-15 \, x + 3 \, e^{\left (2 \, x\right )} + 3 \, e^{x} + 1\right ) \]
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Time = 0.15 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.14 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\log {\left (x \right )} - \log {\left (- 5 x + e^{2 x} + e^{x} \right )} + \log {\left (- 5 x + e^{2 x} + e^{x} + \frac {1}{3} \right )} \]
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Time = 0.23 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.00 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\log \left (x\right ) + \log \left (-5 \, x + e^{\left (2 \, x\right )} + e^{x} + \frac {1}{3}\right ) - \log \left (-5 \, x + e^{\left (2 \, x\right )} + e^{x}\right ) \]
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Time = 0.37 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.29 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=-\log \left (5 \, x - e^{\left (2 \, x\right )} - e^{x}\right ) + \log \left (x\right ) + \log \left (-15 \, x + 3 \, e^{\left (2 \, x\right )} + 3 \, e^{x} + 1\right ) \]
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Time = 0.30 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.29 \[ \int \frac {6 e^{3 x}+3 e^{4 x}+e^{2 x} (4-32 x)+e^x (1-31 x)+75 x^2}{6 e^{3 x} x+3 e^{4 x} x-5 x^2+75 x^3+e^x \left (x-30 x^2\right )+e^{2 x} \left (4 x-30 x^2\right )} \, dx=\ln \left (15\,x-3\,{\mathrm {e}}^{2\,x}-3\,{\mathrm {e}}^x-1\right )-\ln \left (5\,x-{\mathrm {e}}^{2\,x}-{\mathrm {e}}^x\right )+\ln \left (x\right ) \]
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