Integrand size = 66, antiderivative size = 24 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\frac {5}{x^2}+x-\log \left (126-e^{4+(2+x)^2}+x\right ) \]
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\[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {503+256 x+2 x^2}{-126+e^{8+4 x+x^2}-x}+\frac {-10-3 x^3-2 x^4}{x^3}\right ) \, dx \\ & = -\int \frac {503+256 x+2 x^2}{-126+e^{8+4 x+x^2}-x} \, dx+\int \frac {-10-3 x^3-2 x^4}{x^3} \, dx \\ & = \int \left (-3-\frac {10}{x^3}-2 x\right ) \, dx-\int \left (\frac {503}{-126+e^{8+4 x+x^2}-x}-\frac {256 x}{126-e^{8+4 x+x^2}+x}-\frac {2 x^2}{126-e^{8+4 x+x^2}+x}\right ) \, dx \\ & = \frac {5}{x^2}-3 x-x^2+2 \int \frac {x^2}{126-e^{8+4 x+x^2}+x} \, dx+256 \int \frac {x}{126-e^{8+4 x+x^2}+x} \, dx-503 \int \frac {1}{-126+e^{8+4 x+x^2}-x} \, dx \\ \end{align*}
Time = 4.43 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.04 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\frac {5}{x^2}+x-\log \left (126-e^{8+4 x+x^2}+x\right ) \]
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Time = 0.07 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.08
method | result | size |
risch | \(x +\frac {5}{x^{2}}+8-\ln \left ({\mathrm e}^{x^{2}+4 x +8}-x -126\right )\) | \(26\) |
norman | \(\frac {x^{3}+5}{x^{2}}-\ln \left (x -{\mathrm e}^{x^{2}+4 x +8}+126\right )\) | \(28\) |
parallelrisch | \(-\frac {\ln \left (x -{\mathrm e}^{x^{2}+4 x +8}+126\right ) x^{2}-x^{3}-5}{x^{2}}\) | \(32\) |
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Time = 0.33 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.21 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\frac {x^{3} - x^{2} \log \left (-x + e^{\left (x^{2} + 4 \, x + 8\right )} - 126\right ) + 5}{x^{2}} \]
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Time = 0.10 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.83 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=x - \log {\left (- x + e^{x^{2} + 4 x + 8} - 126 \right )} + \frac {5}{x^{2}} \]
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Time = 0.21 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.58 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=-\frac {3 \, x^{3} - 5}{x^{2}} - \log \left (-{\left (x - e^{\left (x^{2} + 4 \, x + 8\right )} + 126\right )} e^{\left (-4 \, x - 8\right )}\right ) \]
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Time = 0.29 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.21 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\frac {x^{3} - x^{2} \log \left (x - e^{\left (x^{2} + 4 \, x + 8\right )} + 126\right ) + 5}{x^{2}} \]
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Time = 0.26 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.17 \[ \int \frac {1260+10 x-125 x^3-x^4+e^{8+4 x+x^2} \left (-10-3 x^3-2 x^4\right )}{-126 x^3+e^{8+4 x+x^2} x^3-x^4} \, dx=\frac {x^3+5}{x^2}-\ln \left (x-{\mathrm {e}}^{4\,x}\,{\mathrm {e}}^{x^2}\,{\mathrm {e}}^8+126\right ) \]
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