Integrand size = 37, antiderivative size = 21 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=2+9 x^2 \left (1-4 \log \left (-x+4 x^2\right )\right ) \]
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Time = 0.12 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95, number of steps used = 10, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.189, Rules used = {6873, 12, 6874, 78, 2581, 30, 45} \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=9 x^2-36 x^2 \log (-((1-4 x) x)) \]
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Rule 12
Rule 30
Rule 45
Rule 78
Rule 2581
Rule 6873
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \frac {18 x (-1+12 x-4 \log (x (-1+4 x))+16 x \log (x (-1+4 x)))}{1-4 x} \, dx \\ & = 18 \int \frac {x (-1+12 x-4 \log (x (-1+4 x))+16 x \log (x (-1+4 x)))}{1-4 x} \, dx \\ & = 18 \int \left (\frac {x (-1+12 x)}{1-4 x}-4 x \log (x (-1+4 x))\right ) \, dx \\ & = 18 \int \frac {x (-1+12 x)}{1-4 x} \, dx-72 \int x \log (x (-1+4 x)) \, dx \\ & = -36 x^2 \log (-((1-4 x) x))+18 \int \left (-\frac {1}{2}-3 x-\frac {1}{2 (-1+4 x)}\right ) \, dx+36 \int x \, dx+144 \int \frac {x^2}{-1+4 x} \, dx \\ & = -9 x-9 x^2-\frac {9}{4} \log (1-4 x)-36 x^2 \log (-((1-4 x) x))+144 \int \left (\frac {1}{16}+\frac {x}{4}+\frac {1}{16 (-1+4 x)}\right ) \, dx \\ & = 9 x^2-36 x^2 \log (-((1-4 x) x)) \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.10 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=-18 \left (-\frac {x^2}{2}+2 x^2 \log (x (-1+4 x))\right ) \]
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Time = 0.41 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.05
method | result | size |
default | \(-36 \ln \left (4 x^{2}-x \right ) x^{2}+9 x^{2}\) | \(22\) |
norman | \(-36 \ln \left (4 x^{2}-x \right ) x^{2}+9 x^{2}\) | \(22\) |
risch | \(-36 \ln \left (4 x^{2}-x \right ) x^{2}+9 x^{2}\) | \(22\) |
parts | \(-36 \ln \left (4 x^{2}-x \right ) x^{2}+9 x^{2}\) | \(22\) |
parallelrisch | \(-36 \ln \left (4 x^{2}-x \right ) x^{2}-\frac {9}{16}+9 x^{2}\) | \(23\) |
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Time = 0.25 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=-36 \, x^{2} \log \left (4 \, x^{2} - x\right ) + 9 \, x^{2} \]
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Time = 0.07 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=- 36 x^{2} \log {\left (4 x^{2} - x \right )} + 9 x^{2} \]
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Time = 0.22 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.71 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=-36 \, x^{2} \log \left (x\right ) + 9 \, x^{2} - \frac {9}{4} \, {\left (16 \, x^{2} - 1\right )} \log \left (4 \, x - 1\right ) - \frac {9}{4} \, \log \left (4 \, x - 1\right ) \]
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Time = 0.25 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=-36 \, x^{2} \log \left (4 \, x^{2} - x\right ) + 9 \, x^{2} \]
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Time = 8.88 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.90 \[ \int \frac {18 x-216 x^2+\left (72 x-288 x^2\right ) \log \left (-x+4 x^2\right )}{-1+4 x} \, dx=-9\,x^2\,\left (4\,\ln \left (4\,x^2-x\right )-1\right ) \]
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