Integrand size = 99, antiderivative size = 25 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=x \left (1+\frac {5 e^{-4-x-x^2} x}{1+\log (x)}\right ) \]
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\[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^{-4-x-x^2} \left (e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)\right )}{(1+\log (x))^2} \, dx \\ & = \int \left (1+\frac {5 e^{-4-x-x^2} x}{(1+\log (x))^2}-\frac {5 e^{-4-x-x^2} x^2}{(1+\log (x))^2}-\frac {10 e^{-4-x-x^2} x^3}{(1+\log (x))^2}+\frac {10 e^{-4-x-x^2} x \log (x)}{(1+\log (x))^2}-\frac {5 e^{-4-x-x^2} x^2 \log (x)}{(1+\log (x))^2}-\frac {10 e^{-4-x-x^2} x^3 \log (x)}{(1+\log (x))^2}\right ) \, dx \\ & = x+5 \int \frac {e^{-4-x-x^2} x}{(1+\log (x))^2} \, dx-5 \int \frac {e^{-4-x-x^2} x^2}{(1+\log (x))^2} \, dx-5 \int \frac {e^{-4-x-x^2} x^2 \log (x)}{(1+\log (x))^2} \, dx-10 \int \frac {e^{-4-x-x^2} x^3}{(1+\log (x))^2} \, dx+10 \int \frac {e^{-4-x-x^2} x \log (x)}{(1+\log (x))^2} \, dx-10 \int \frac {e^{-4-x-x^2} x^3 \log (x)}{(1+\log (x))^2} \, dx \\ & = x+5 \int \frac {e^{-4-x-x^2} x}{(1+\log (x))^2} \, dx-5 \int \frac {e^{-4-x-x^2} x^2}{(1+\log (x))^2} \, dx-5 \int \left (-\frac {e^{-4-x-x^2} x^2}{(1+\log (x))^2}+\frac {e^{-4-x-x^2} x^2}{1+\log (x)}\right ) \, dx-10 \int \frac {e^{-4-x-x^2} x^3}{(1+\log (x))^2} \, dx+10 \int \left (-\frac {e^{-4-x-x^2} x}{(1+\log (x))^2}+\frac {e^{-4-x-x^2} x}{1+\log (x)}\right ) \, dx-10 \int \left (-\frac {e^{-4-x-x^2} x^3}{(1+\log (x))^2}+\frac {e^{-4-x-x^2} x^3}{1+\log (x)}\right ) \, dx \\ & = x+5 \int \frac {e^{-4-x-x^2} x}{(1+\log (x))^2} \, dx-5 \int \frac {e^{-4-x-x^2} x^2}{1+\log (x)} \, dx-10 \int \frac {e^{-4-x-x^2} x}{(1+\log (x))^2} \, dx+10 \int \frac {e^{-4-x-x^2} x}{1+\log (x)} \, dx-10 \int \frac {e^{-4-x-x^2} x^3}{1+\log (x)} \, dx \\ \end{align*}
Time = 0.64 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.08 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\frac {x \left (1+5 e^{-4-x-x^2} x+\log (x)\right )}{1+\log (x)} \]
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Time = 0.56 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.00
method | result | size |
risch | \(x +\frac {5 x^{2} {\mathrm e}^{-x^{2}-x -4}}{\ln \left (x \right )+1}\) | \(25\) |
parallelrisch | \(\frac {\left (x \ln \left (x \right ) {\mathrm e}^{x^{2}+x +4}+5 x^{2}+x \,{\mathrm e}^{x^{2}+x +4}\right ) {\mathrm e}^{-x^{2}-x -4}}{\ln \left (x \right )+1}\) | \(43\) |
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Time = 0.25 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.88 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\frac {x e^{\left (x^{2} + x + 4\right )} \log \left (x\right ) + 5 \, x^{2} + x e^{\left (x^{2} + x + 4\right )}}{e^{\left (x^{2} + x + 4\right )} \log \left (x\right ) + e^{\left (x^{2} + x + 4\right )}} \]
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Time = 0.11 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.80 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\frac {5 x^{2} e^{- x^{2} - x - 4}}{\log {\left (x \right )} + 1} + x \]
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Time = 0.26 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.64 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\frac {{\left (5 \, x^{2} e^{\left (-x^{2}\right )} + {\left (x e^{4} \log \left (x\right ) + x e^{4}\right )} e^{x}\right )} e^{\left (-x\right )}}{e^{4} \log \left (x\right ) + e^{4}} \]
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Time = 0.27 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.48 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=\frac {5 \, x^{2} e^{\left (-x^{2} - x\right )} + x e^{4} \log \left (x\right ) + x e^{4}}{e^{4} \log \left (x\right ) + e^{4}} \]
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Time = 9.98 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.00 \[ \int \frac {e^{4+x+x^2}+5 x-5 x^2-10 x^3+\left (2 e^{4+x+x^2}+10 x-5 x^2-10 x^3\right ) \log (x)+e^{4+x+x^2} \log ^2(x)}{e^{4+x+x^2}+2 e^{4+x+x^2} \log (x)+e^{4+x+x^2} \log ^2(x)} \, dx=x+\frac {5\,x^2\,{\mathrm {e}}^{-x}\,{\mathrm {e}}^{-4}\,{\mathrm {e}}^{-x^2}}{\ln \left (x\right )+1} \]
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