Integrand size = 94, antiderivative size = 22 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=\log \left (\frac {\left (x+(x-4 (6+x+\log (4+x)))^2\right )^2}{x^2}\right ) \]
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Time = 0.52 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.77, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.032, Rules used = {6873, 6874, 6816} \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2 \log \left (9 x^2+145 x+16 \log ^2(x+4)+24 x \log (x+4)+192 \log (x+4)+576\right )-2 \log (x) \]
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Rule 6816
Rule 6873
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{x (4+x) \left (576+145 x+9 x^2+192 \log (4+x)+24 x \log (4+x)+16 \log ^2(4+x)\right )} \, dx \\ & = \int \left (-\frac {2}{x}+\frac {2 \left (772+241 x+18 x^2+128 \log (4+x)+24 x \log (4+x)\right )}{(4+x) \left (576+145 x+9 x^2+192 \log (4+x)+24 x \log (4+x)+16 \log ^2(4+x)\right )}\right ) \, dx \\ & = -2 \log (x)+2 \int \frac {772+241 x+18 x^2+128 \log (4+x)+24 x \log (4+x)}{(4+x) \left (576+145 x+9 x^2+192 \log (4+x)+24 x \log (4+x)+16 \log ^2(4+x)\right )} \, dx \\ & = -2 \log (x)+2 \log \left (576+145 x+9 x^2+192 \log (4+x)+24 x \log (4+x)+16 \log ^2(4+x)\right ) \\ \end{align*}
Time = 0.30 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.77 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2 \left (-\log (x)+\log \left (576+145 x+9 x^2+192 \log (4+x)+24 x \log (4+x)+16 \log ^2(4+x)\right )\right ) \]
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Time = 0.50 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.59
method | result | size |
risch | \(-2 \ln \left (x \right )+2 \ln \left (\ln \left (4+x \right )^{2}+\left (\frac {3 x}{2}+12\right ) \ln \left (4+x \right )+\frac {9 x^{2}}{16}+\frac {145 x}{16}+36\right )\) | \(35\) |
parallelrisch | \(-2 \ln \left (x \right )+2 \ln \left (x^{2}+\frac {8 \ln \left (4+x \right ) x}{3}+\frac {16 \ln \left (4+x \right )^{2}}{9}+\frac {145 x}{9}+\frac {64 \ln \left (4+x \right )}{3}+64\right )\) | \(38\) |
norman | \(-2 \ln \left (x \right )+2 \ln \left (16 \ln \left (4+x \right )^{2}+24 \ln \left (4+x \right ) x +9 x^{2}+192 \ln \left (4+x \right )+145 x +576\right )\) | \(40\) |
derivativedivides | \(2 \ln \left (16 \ln \left (4+x \right )^{2}+24 \left (4+x \right ) \ln \left (4+x \right )+9 \left (4+x \right )^{2}+96 \ln \left (4+x \right )+432+73 x \right )-2 \ln \left (x \right )\) | \(44\) |
default | \(2 \ln \left (16 \ln \left (4+x \right )^{2}+24 \left (4+x \right ) \ln \left (4+x \right )+9 \left (4+x \right )^{2}+96 \ln \left (4+x \right )+432+73 x \right )-2 \ln \left (x \right )\) | \(44\) |
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Time = 0.26 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.59 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2 \, \log \left (9 \, x^{2} + 24 \, {\left (x + 8\right )} \log \left (x + 4\right ) + 16 \, \log \left (x + 4\right )^{2} + 145 \, x + 576\right ) - 2 \, \log \left (x\right ) \]
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Time = 0.20 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.77 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=- 2 \log {\left (x \right )} + 2 \log {\left (\frac {9 x^{2}}{16} + \frac {145 x}{16} + \left (\frac {3 x}{2} + 12\right ) \log {\left (x + 4 \right )} + \log {\left (x + 4 \right )}^{2} + 36 \right )} \]
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Time = 0.22 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.50 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2 \, \log \left (\frac {9}{16} \, x^{2} + \frac {3}{2} \, {\left (x + 8\right )} \log \left (x + 4\right ) + \log \left (x + 4\right )^{2} + \frac {145}{16} \, x + 36\right ) - 2 \, \log \left (x\right ) \]
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Time = 0.27 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.77 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2 \, \log \left (9 \, x^{2} + 24 \, x \log \left (x + 4\right ) + 16 \, \log \left (x + 4\right )^{2} + 145 \, x + 192 \, \log \left (x + 4\right ) + 576\right ) - 2 \, \log \left (x\right ) \]
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Time = 11.05 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.68 \[ \int \frac {-4608-768 x+120 x^2+18 x^3+(-1536-320 x) \log (4+x)+(-128-32 x) \log ^2(4+x)}{2304 x+1156 x^2+181 x^3+9 x^4+\left (768 x+288 x^2+24 x^3\right ) \log (4+x)+\left (64 x+16 x^2\right ) \log ^2(4+x)} \, dx=2\,\ln \left (\frac {9\,x^2}{16}+\frac {3\,x\,\ln \left (x+4\right )}{2}+\frac {145\,x}{16}+{\ln \left (x+4\right )}^2+12\,\ln \left (x+4\right )+36\right )-2\,\ln \left (x\right ) \]
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