Integrand size = 40, antiderivative size = 23 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=e^x x+5 \left (8+x-5 \log \left (-2 x+16 x^2\right )\right ) \]
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Time = 0.17 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.22, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {1607, 6874, 2207, 2225, 907} \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=5 x-e^x+e^x (x+1)-25 \log (1-8 x)-25 \log (x) \]
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Rule 907
Rule 1607
Rule 2207
Rule 2225
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{x (-1+8 x)} \, dx \\ & = \int \left (e^x (1+x)+\frac {5 \left (5-81 x+8 x^2\right )}{x (-1+8 x)}\right ) \, dx \\ & = 5 \int \frac {5-81 x+8 x^2}{x (-1+8 x)} \, dx+\int e^x (1+x) \, dx \\ & = e^x (1+x)+5 \int \left (1-\frac {5}{x}-\frac {40}{-1+8 x}\right ) \, dx-\int e^x \, dx \\ & = -e^x+5 x+e^x (1+x)-25 \log (1-8 x)-25 \log (x) \\ \end{align*}
Time = 0.40 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.91 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=5 x+e^x x-25 \log (1-8 x)-25 \log (x) \]
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Time = 0.53 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.83
method | result | size |
parallelrisch | \(5 x +{\mathrm e}^{x} x -25 \ln \left (x \right )-25 \ln \left (x -\frac {1}{8}\right )\) | \(19\) |
default | \(-25 \ln \left (x \right )-25 \ln \left (8 x -1\right )+5 x +{\mathrm e}^{x} x\) | \(21\) |
norman | \(-25 \ln \left (x \right )-25 \ln \left (8 x -1\right )+5 x +{\mathrm e}^{x} x\) | \(21\) |
risch | \(5 x -25 \ln \left (8 x^{2}-x \right )+{\mathrm e}^{x} x\) | \(21\) |
parts | \(-25 \ln \left (x \right )-25 \ln \left (8 x -1\right )+5 x +{\mathrm e}^{x} x\) | \(21\) |
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Time = 0.30 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=x e^{x} + 5 \, x - 25 \, \log \left (8 \, x^{2} - x\right ) \]
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Time = 0.09 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.74 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=x e^{x} + 5 x - 25 \log {\left (8 x^{2} - x \right )} \]
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\[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=\int { \frac {40 \, x^{2} + {\left (8 \, x^{3} + 7 \, x^{2} - x\right )} e^{x} - 405 \, x + 25}{8 \, x^{2} - x} \,d x } \]
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Time = 0.28 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=x e^{x} + 5 \, x - 25 \, \log \left (8 \, x - 1\right ) - 25 \, \log \left (x\right ) \]
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Time = 0.09 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {25-405 x+40 x^2+e^x \left (-x+7 x^2+8 x^3\right )}{-x+8 x^2} \, dx=5\,x-25\,\ln \left (x-\frac {1}{8}\right )-25\,\ln \left (x\right )+x\,{\mathrm {e}}^x \]
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