Integrand size = 34, antiderivative size = 31 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=\frac {25}{x}-\frac {1}{3} \log \left (e^{-6 e^{-x+x \log (x)}+2 x} x\right ) \]
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\[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=\int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{x^2} \, dx \\ & = \frac {1}{3} \int \left (\frac {-75-x-2 x^2}{x^2}+6 e^{-x} x^x \log (x)\right ) \, dx \\ & = \frac {1}{3} \int \frac {-75-x-2 x^2}{x^2} \, dx+2 \int e^{-x} x^x \log (x) \, dx \\ & = \frac {1}{3} \int \left (-2-\frac {75}{x^2}-\frac {1}{x}\right ) \, dx-2 \int \frac {\int e^{-x} x^x \, dx}{x} \, dx+(2 \log (x)) \int e^{-x} x^x \, dx \\ & = \frac {25}{x}-\frac {2 x}{3}-\frac {\log (x)}{3}-2 \int \frac {\int e^{-x} x^x \, dx}{x} \, dx+(2 \log (x)) \int e^{-x} x^x \, dx \\ \end{align*}
Time = 0.26 (sec) , antiderivative size = 27, normalized size of antiderivative = 0.87 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=\frac {1}{3} \left (\frac {75}{x}-2 x+6 e^{-x} x^x-\log (x)\right ) \]
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Time = 0.07 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.74
method | result | size |
risch | \(-\frac {2 x}{3}-\frac {\ln \left (x \right )}{3}+\frac {25}{x}+2 x^{x} {\mathrm e}^{-x}\) | \(23\) |
default | \(-\frac {2 x}{3}-\frac {\ln \left (x \right )}{3}+\frac {25}{x}+2 \,{\mathrm e}^{x \ln \left (x \right )-x}\) | \(25\) |
parts | \(-\frac {2 x}{3}-\frac {\ln \left (x \right )}{3}+\frac {25}{x}+2 \,{\mathrm e}^{x \ln \left (x \right )-x}\) | \(25\) |
parallelrisch | \(-\frac {x \ln \left (x \right )+2 x^{2}-6 x \,{\mathrm e}^{\left (\ln \left (x \right )-1\right ) x}-75}{3 x}\) | \(27\) |
norman | \(\frac {25-\frac {x \ln \left (x \right )}{3}-\frac {2 x^{2}}{3}+2 x \,{\mathrm e}^{x \ln \left (x \right )-x}}{x}\) | \(29\) |
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Time = 0.26 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.90 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=-\frac {2 \, x^{2} - 6 \, x e^{\left (x \log \left (x\right ) - x\right )} + x \log \left (x\right ) - 75}{3 \, x} \]
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Time = 0.08 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.71 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=- \frac {2 x}{3} + 2 e^{x \log {\left (x \right )} - x} - \frac {\log {\left (x \right )}}{3} + \frac {25}{x} \]
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Time = 0.20 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.77 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=-\frac {2}{3} \, x + \frac {25}{x} + 2 \, e^{\left (x \log \left (x\right ) - x\right )} - \frac {1}{3} \, \log \left (x\right ) \]
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Time = 0.25 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.90 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=-\frac {2 \, x^{2} - 6 \, x e^{\left (x \log \left (x\right ) - x\right )} + x \log \left (x\right ) - 75}{3 \, x} \]
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Time = 8.42 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.71 \[ \int \frac {-75-x-2 x^2+6 e^{-x+x \log (x)} x^2 \log (x)}{3 x^2} \, dx=\frac {25}{x}-\frac {\ln \left (x\right )}{3}-\frac {2\,x}{3}+2\,x^x\,{\mathrm {e}}^{-x} \]
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