Integrand size = 110, antiderivative size = 27 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=-9-\frac {e^x}{2}+e^{-4-x-\frac {4}{\log (x (3+x))}}+x \]
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Time = 2.46 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.96, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.045, Rules used = {1607, 6873, 6874, 2225, 6838} \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=x-\frac {e^x}{2}+e^{-x-\frac {4}{\log (x (x+3))}-4} \]
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Rule 1607
Rule 2225
Rule 6838
Rule 6873
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+\exp \left (\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}\right ) \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{x (3+x) \log ^2\left (3 x+x^2\right )} \, dx \\ & = \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+\exp \left (\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}\right ) \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{x (3+x) \log ^2(x (3+x))} \, dx \\ & = \int \left (\frac {1}{2} \left (2-e^x\right )-\frac {e^{-4-x-\frac {4}{\log (x (3+x))}} \left (-12-8 x+3 x \log ^2(x (3+x))+x^2 \log ^2(x (3+x))\right )}{x (3+x) \log ^2(x (3+x))}\right ) \, dx \\ & = \frac {1}{2} \int \left (2-e^x\right ) \, dx-\int \frac {e^{-4-x-\frac {4}{\log (x (3+x))}} \left (-12-8 x+3 x \log ^2(x (3+x))+x^2 \log ^2(x (3+x))\right )}{x (3+x) \log ^2(x (3+x))} \, dx \\ & = e^{-4-x-\frac {4}{\log (x (3+x))}}+x-\frac {\int e^x \, dx}{2} \\ & = -\frac {e^x}{2}+e^{-4-x-\frac {4}{\log (x (3+x))}}+x \\ \end{align*}
Time = 0.14 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.19 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=\frac {1}{2} \left (-e^x+2 e^{-4-x-\frac {4}{\log (x (3+x))}}+2 x\right ) \]
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Time = 1.74 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.48
method | result | size |
default | \(x +{\mathrm e}^{\frac {\left (-4-x \right ) \ln \left (x^{2}+3 x \right )-4}{\ln \left (x^{2}+3 x \right )}}-{\mathrm e}^{x -\ln \left (2\right )}\) | \(40\) |
parts | \(x +{\mathrm e}^{\frac {\left (-4-x \right ) \ln \left (x^{2}+3 x \right )-4}{\ln \left (x^{2}+3 x \right )}}-{\mathrm e}^{x -\ln \left (2\right )}\) | \(40\) |
parallelrisch | \(-\frac {3}{2}+x -{\mathrm e}^{x -\ln \left (2\right )}+{\mathrm e}^{\frac {\left (-4-x \right ) \ln \left (x^{2}+3 x \right )-4}{\ln \left (x^{2}+3 x \right )}}\) | \(41\) |
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Time = 0.25 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.41 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=x - e^{\left (x - \log \left (2\right )\right )} + e^{\left (-\frac {{\left (x + 4\right )} \log \left (x^{2} + 3 \, x\right ) + 4}{\log \left (x^{2} + 3 \, x\right )}\right )} \]
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Time = 0.60 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.15 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=x - \frac {e^{x}}{2} + e^{\frac {\left (- x - 4\right ) \log {\left (x^{2} + 3 x \right )} - 4}{\log {\left (x^{2} + 3 x \right )}}} \]
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\[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=\int { \frac {{\left (x^{2} - {\left (x^{2} + 3 \, x\right )} e^{\left (x - \log \left (2\right )\right )} + 3 \, x\right )} \log \left (x^{2} + 3 \, x\right )^{2} - {\left ({\left (x^{2} + 3 \, x\right )} \log \left (x^{2} + 3 \, x\right )^{2} - 8 \, x - 12\right )} e^{\left (-\frac {{\left (x + 4\right )} \log \left (x^{2} + 3 \, x\right ) + 4}{\log \left (x^{2} + 3 \, x\right )}\right )}}{{\left (x^{2} + 3 \, x\right )} \log \left (x^{2} + 3 \, x\right )^{2}} \,d x } \]
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Time = 2.04 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.52 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=x - \frac {1}{2} \, e^{x} + e^{\left (-\frac {x \log \left (x^{2} + 3 \, x\right ) + 4 \, \log \left (x^{2} + 3 \, x\right ) + 4}{\log \left (x^{2} + 3 \, x\right )}\right )} \]
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Time = 12.42 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.96 \[ \int \frac {\left (3 x+x^2+\frac {1}{2} e^x \left (-3 x-x^2\right )\right ) \log ^2\left (3 x+x^2\right )+e^{\frac {-4+(-4-x) \log \left (3 x+x^2\right )}{\log \left (3 x+x^2\right )}} \left (12+8 x+\left (-3 x-x^2\right ) \log ^2\left (3 x+x^2\right )\right )}{\left (3 x+x^2\right ) \log ^2\left (3 x+x^2\right )} \, dx=x-\frac {{\mathrm {e}}^x}{2}+{\mathrm {e}}^{-x}\,{\mathrm {e}}^{-4}\,{\mathrm {e}}^{-\frac {4}{\ln \left (x^2+3\,x\right )}} \]
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