Integrand size = 73, antiderivative size = 26 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=i \pi +\log (4)+\frac {1}{-2+3 x-\log (x)-\frac {\log (x)}{x^2}} \]
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\[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=\int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {x+x^3-3 x^4-2 x \log (x)}{\left (x^2 (-2+3 x)-\left (1+x^2\right ) \log (x)\right )^2} \, dx \\ & = \int \left (\frac {2 x}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )}+\frac {x \left (1+6 x^2-9 x^3+x^4-3 x^5\right )}{\left (1+x^2\right ) \left (2 x^2-3 x^3+\log (x)+x^2 \log (x)\right )^2}\right ) \, dx \\ & = 2 \int \frac {x}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {x \left (1+6 x^2-9 x^3+x^4-3 x^5\right )}{\left (1+x^2\right ) \left (2 x^2-3 x^3+\log (x)+x^2 \log (x)\right )^2} \, dx \\ & = 2 \int \left (-\frac {1}{2 (i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )}+\frac {1}{2 (i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )}\right ) \, dx+\int \left (\frac {6}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}+\frac {5 x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}-\frac {6 x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}+\frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}-\frac {3 x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}-\frac {2 (3+2 x)}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}\right ) \, dx \\ & = -\left (2 \int \frac {3+2 x}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx\right )-3 \int \frac {x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+5 \int \frac {x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+6 \int \frac {1}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+\int \frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-\int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx \\ & = -\left (2 \int \left (\frac {3}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}+\frac {2 x}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}\right ) \, dx\right )-3 \int \frac {x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+5 \int \frac {x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+6 \int \frac {1}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+\int \frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-\int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx \\ & = -\left (3 \int \frac {x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx\right )-4 \int \frac {x}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+5 \int \frac {x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+6 \int \frac {1}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {1}{\left (1+x^2\right ) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+\int \frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-\int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx \\ & = -\left (3 \int \frac {x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx\right )-4 \int \left (-\frac {1}{2 (i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}+\frac {1}{2 (i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}\right ) \, dx+5 \int \frac {x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+6 \int \frac {1}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \left (\frac {i}{2 (i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}+\frac {i}{2 (i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2}\right ) \, dx+\int \frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-\int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx \\ & = -\left (3 i \int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx\right )-3 i \int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+2 \int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-2 \int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-3 \int \frac {x^4}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+5 \int \frac {x}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+6 \int \frac {1}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-6 \int \frac {x^2}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx+\int \frac {x^3}{\left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )^2} \, dx-\int \frac {1}{(i-x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx+\int \frac {1}{(i+x) \left (-2 x^2+3 x^3-\log (x)-x^2 \log (x)\right )} \, dx \\ \end{align*}
Time = 0.37 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=-\frac {x^2}{2 x^2-3 x^3+\log (x)+x^2 \log (x)} \]
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Time = 0.58 (sec) , antiderivative size = 27, normalized size of antiderivative = 1.04
method | result | size |
default | \(-\frac {x^{2}}{x^{2} \ln \left (x \right )-3 x^{3}+2 x^{2}+\ln \left (x \right )}\) | \(27\) |
norman | \(\frac {x^{2}}{3 x^{3}-x^{2} \ln \left (x \right )-2 x^{2}-\ln \left (x \right )}\) | \(29\) |
risch | \(\frac {x^{2}}{3 x^{3}-x^{2} \ln \left (x \right )-2 x^{2}-\ln \left (x \right )}\) | \(29\) |
parallelrisch | \(\frac {x^{2}}{3 x^{3}-x^{2} \ln \left (x \right )-2 x^{2}-\ln \left (x \right )}\) | \(29\) |
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Time = 0.24 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=\frac {x^{2}}{3 \, x^{3} - 2 \, x^{2} - {\left (x^{2} + 1\right )} \log \left (x\right )} \]
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Time = 0.14 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.85 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=- \frac {x^{2}}{- 3 x^{3} + 2 x^{2} + \left (x^{2} + 1\right ) \log {\left (x \right )}} \]
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Time = 0.21 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=\frac {x^{2}}{3 \, x^{3} - 2 \, x^{2} - {\left (x^{2} + 1\right )} \log \left (x\right )} \]
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Time = 0.31 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.08 \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=\frac {x^{2}}{3 \, x^{3} - x^{2} \log \left (x\right ) - 2 \, x^{2} - \log \left (x\right )} \]
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Timed out. \[ \int \frac {x+x^3-3 x^4-2 x \log (x)}{4 x^4-12 x^5+9 x^6+\left (4 x^2-6 x^3+4 x^4-6 x^5\right ) \log (x)+\left (1+2 x^2+x^4\right ) \log ^2(x)} \, dx=\int \frac {x-2\,x\,\ln \left (x\right )+x^3-3\,x^4}{{\ln \left (x\right )}^2\,\left (x^4+2\,x^2+1\right )+\ln \left (x\right )\,\left (-6\,x^5+4\,x^4-6\,x^3+4\,x^2\right )+4\,x^4-12\,x^5+9\,x^6} \,d x \]
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