Integrand size = 77, antiderivative size = 24 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log \left (x \left (-x+e \left (-\frac {1}{2 e}+\left (e^x+x\right )^2\right )\right )\right ) \]
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Time = 0.08 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.42, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.013, Rules used = {6816} \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log \left (-2 e x^3-4 e^{x+1} x^2+2 x^2-2 e^{2 x+1} x+x\right ) \]
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Rule 6816
Rubi steps \begin{align*} \text {integral}& = \log \left (x-2 e^{1+2 x} x+2 x^2-4 e^{1+x} x^2-2 e x^3\right ) \\ \end{align*}
Time = 2.50 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.33 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log (x)+\log \left (1-2 e^{1+2 x}+2 x-4 e^{1+x} x-2 e x^2\right ) \]
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Time = 0.23 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.12
method | result | size |
risch | \(\ln \left (x \right )+\ln \left ({\mathrm e}^{2 x}+2 \,{\mathrm e}^{x} x +x^{2}-{\mathrm e}^{-1} x -\frac {{\mathrm e}^{-1}}{2}\right )\) | \(27\) |
norman | \(\ln \left (x \right )+\ln \left (2 \,{\mathrm e} \,{\mathrm e}^{2 x}+4 x \,{\mathrm e} \,{\mathrm e}^{x}+2 x^{2} {\mathrm e}-2 x -1\right )\) | \(32\) |
parallelrisch | \(\ln \left (x \right )+\ln \left (\frac {\left (2 \,{\mathrm e} \,{\mathrm e}^{2 x}+4 x \,{\mathrm e} \,{\mathrm e}^{x}+2 x^{2} {\mathrm e}-2 x -1\right ) {\mathrm e}^{-1}}{2}\right )\) | \(38\) |
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Time = 0.27 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.50 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log \left (2 \, x^{2} e^{2} - {\left (2 \, x + 1\right )} e + 4 \, x e^{\left (x + 2\right )} + 2 \, e^{\left (2 \, x + 2\right )}\right ) + \log \left (x\right ) \]
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Time = 0.12 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.42 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log {\left (x \right )} + \log {\left (2 x e^{x} + \frac {2 e x^{2} - 2 x - 1}{2 e} + e^{2 x} \right )} \]
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Time = 0.24 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.46 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log \left (\frac {1}{2} \, {\left (2 \, x^{2} e + 4 \, x e^{\left (x + 1\right )} - 2 \, x + 2 \, e^{\left (2 \, x + 1\right )} - 1\right )} e^{\left (-1\right )}\right ) + \log \left (x\right ) \]
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Leaf count of result is larger than twice the leaf count of optimal. 57 vs. \(2 (24) = 48\).
Time = 0.28 (sec) , antiderivative size = 57, normalized size of antiderivative = 2.38 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\log \left (2 \, {\left (x + 1\right )}^{2} e^{2} - 4 \, {\left (x + 1\right )} e^{2} - 2 \, {\left (x + 1\right )} e + 4 \, {\left (x + 1\right )} e^{\left (x + 2\right )} + 2 \, e^{2} + e + 2 \, e^{\left (2 \, x + 2\right )} - 4 \, e^{\left (x + 2\right )}\right ) + \log \left (x\right ) \]
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Time = 13.55 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.08 \[ \int \frac {-1-4 x+6 e x^2+e^{1+2 x} (2+4 x)+e^{1+x} \left (8 x+4 x^2\right )}{-x+2 e^{1+2 x} x-2 x^2+4 e^{1+x} x^2+2 e x^3} \, dx=\ln \left ({\mathrm {e}}^{2\,x}-\frac {{\mathrm {e}}^{-1}}{2}-x\,{\mathrm {e}}^{-1}+2\,x\,{\mathrm {e}}^x+x^2\right )+\ln \left (x\right ) \]
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