Integrand size = 32, antiderivative size = 19 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^6+\log \left (\frac {e^{-x^2} (-4+x)}{x}\right ) \]
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Time = 0.03 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {1607, 1634} \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^6-x^2+\log (4-x)-\log (x) \]
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Rule 1607
Rule 1634
Rubi steps \begin{align*} \text {integral}& = \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{(-4+x) x} \, dx \\ & = \int \left (\frac {1}{-4+x}-\frac {1}{x}-2 x+6 x^5\right ) \, dx \\ & = -x^2+x^6+\log (4-x)-\log (x) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=-x^2+x^6+\log (4-x)-\log (x) \]
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Time = 0.42 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.95
method | result | size |
default | \(x^{6}-x^{2}+\ln \left (x -4\right )-\ln \left (x \right )\) | \(18\) |
norman | \(x^{6}-x^{2}+\ln \left (x -4\right )-\ln \left (x \right )\) | \(18\) |
risch | \(x^{6}-x^{2}+\ln \left (x -4\right )-\ln \left (x \right )\) | \(18\) |
parallelrisch | \(x^{6}-x^{2}+\ln \left (x -4\right )-\ln \left (x \right )\) | \(18\) |
meijerg | \(-\ln \left (x \right )+2 \ln \left (2\right )-i \pi +\ln \left (-\frac {x}{4}+1\right )+\frac {512 x \left (\frac {35}{512} x^{5}+\frac {21}{64} x^{4}+\frac {105}{64} x^{3}+\frac {35}{4} x^{2}+\frac {105}{2} x +420\right )}{35}-\frac {512 x \left (\frac {3}{64} x^{4}+\frac {15}{64} x^{3}+\frac {5}{4} x^{2}+\frac {15}{2} x +60\right )}{5}-\frac {4 x \left (\frac {3 x}{4}+6\right )}{3}+8 x\) | \(82\) |
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Time = 0.31 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.89 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^{6} - x^{2} + \log \left (x - 4\right ) - \log \left (x\right ) \]
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Time = 0.05 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.74 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^{6} - x^{2} - \log {\left (x \right )} + \log {\left (x - 4 \right )} \]
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Time = 0.20 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.89 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^{6} - x^{2} + \log \left (x - 4\right ) - \log \left (x\right ) \]
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Time = 0.28 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^{6} - x^{2} + \log \left ({\left | x - 4 \right |}\right ) - \log \left ({\left | x \right |}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.89 \[ \int \frac {4+8 x^2-2 x^3-24 x^6+6 x^7}{-4 x+x^2} \, dx=x^6-x^2-2\,\mathrm {atanh}\left (\frac {x}{2}-1\right ) \]
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