Integrand size = 41, antiderivative size = 29 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=2 x+x^2-(x-4 (i \pi +\log (3))) \log \left ((-4-x)^2\right ) \]
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Time = 0.12 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.14, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.122, Rules used = {6873, 6874, 712, 2436, 2332} \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=x^2+2 x+2 (4+4 i \pi +\log (81)) \log (x+4)-(x+4) \log \left ((x+4)^2\right ) \]
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Rule 712
Rule 2332
Rule 2436
Rule 6873
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {8 x+2 x^2+8 (1+i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx \\ & = \int \left (\frac {2 i \left (4 \pi -4 i x-i x^2-i (4+\log (81))\right )}{4+x}-\log \left ((4+x)^2\right )\right ) \, dx \\ & = 2 i \int \frac {4 \pi -4 i x-i x^2-i (4+\log (81))}{4+x} \, dx-\int \log \left ((4+x)^2\right ) \, dx \\ & = 2 i \int \left (-i x+\frac {4 \pi -i (4+\log (81))}{4+x}\right ) \, dx-\text {Subst}\left (\int \log \left (x^2\right ) \, dx,x,4+x\right ) \\ & = 2 x+x^2+2 (4+4 i \pi +\log (81)) \log (4+x)-(4+x) \log \left ((4+x)^2\right ) \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.17 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=-16+2 x+x^2+2 (4+4 i \pi +\log (81)) \log (4+x)-(4+x) \log \left ((4+x)^2\right ) \]
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Time = 1.16 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.24
method | result | size |
risch | \(-\ln \left (x^{2}+8 x +16\right ) x +x^{2}+2 x +8 \ln \left (3\right ) \ln \left (4+x \right )+8 i \pi \ln \left (4+x \right )\) | \(36\) |
norman | \(x^{2}+\left (4 i \pi +4 \ln \left (3\right )\right ) \ln \left (x^{2}+8 x +16\right )+2 x -\ln \left (x^{2}+8 x +16\right ) x\) | \(39\) |
parts | \(x^{2}+2 \left (4 i \pi +4 \ln \left (3\right )+4\right ) \ln \left (4+x \right )-\ln \left (x^{2}+8 x +16\right ) x +2 x -8 \ln \left (4+x \right )\) | \(42\) |
default | \(8 \ln \left (3\right ) \ln \left (4+x \right )+x^{2}+2 \left (4 i \pi +4\right ) \ln \left (4+x \right )-\ln \left (x^{2}+8 x +16\right ) x +2 x -8 \ln \left (4+x \right )\) | \(46\) |
parallelrisch | \(4 i \pi \ln \left (x^{2}+8 x +16\right )+4 \ln \left (3\right ) \ln \left (x^{2}+8 x +16\right )-32+x^{2}-\ln \left (x^{2}+8 x +16\right ) x +2 x\) | \(47\) |
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Time = 0.26 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.97 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=x^{2} + {\left (4 i \, \pi - x + 4 \, \log \left (3\right )\right )} \log \left (x^{2} + 8 \, x + 16\right ) + 2 \, x \]
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Time = 0.13 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.07 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=x^{2} - x \log {\left (x^{2} + 8 x + 16 \right )} + 2 x + 8 \left (\log {\left (3 \right )} + i \pi \right ) \log {\left (x + 4 \right )} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 49 vs. \(2 (24) = 48\).
Time = 0.19 (sec) , antiderivative size = 49, normalized size of antiderivative = 1.69 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=x^{2} - {\left (x - 4 \, \log \left (x + 4\right )\right )} \log \left (x^{2} + 8 \, x + 16\right ) + 8 i \, \pi \log \left (x + 4\right ) + 8 \, \log \left (3\right ) \log \left (x + 4\right ) - 8 \, \log \left (x + 4\right )^{2} + 2 \, x \]
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Time = 0.25 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.14 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=x^{2} - x \log \left (x^{2} + 8 \, x + 16\right ) - 8 \, {\left (-i \, \pi - \log \left (3\right )\right )} \log \left (x + 4\right ) + 2 \, x \]
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Time = 0.31 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.24 \[ \int \frac {8+8 x+2 x^2+8 (i \pi +\log (3))+(-4-x) \log \left (16+8 x+x^2\right )}{4+x} \, dx=2\,x+4\,\ln \left (3\right )\,\ln \left ({\left (x+4\right )}^2\right )-x\,\ln \left ({\left (x+4\right )}^2\right )+x^2+\Pi \,\ln \left ({\left (x+4\right )}^2\right )\,4{}\mathrm {i} \]
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