Integrand size = 105, antiderivative size = 19 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\frac {\frac {1}{3}+x}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \]
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\[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {162+486 x+x^3+3 x^4-\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{3 x \left (81-x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx \\ & = \frac {1}{3} \int \frac {162+486 x+x^3+3 x^4-\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{x \left (81-x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx \\ & = \frac {1}{3} \int \left (\frac {-162-486 x-x^3-3 x^4}{x \left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}+\frac {3}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}\right ) \, dx \\ & = \frac {1}{3} \int \frac {-162-486 x-x^3-3 x^4}{x \left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {1}{3} \int \left (-\frac {3}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}+\frac {2}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}-\frac {3 \left (243+x^2\right )}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}\right ) \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {2}{3} \int \frac {1}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \frac {1}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \frac {243+x^2}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {2}{3} \int \frac {1}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \left (\frac {243}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}+\frac {x^2}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}\right ) \, dx-\int \frac {1}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {2}{3} \int \frac {1}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-243 \int \frac {1}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \frac {1}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \frac {x^2}{\left (-81+x^3\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {2}{3} \int \frac {1}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-243 \int \left (-\frac {1}{27\ 3^{2/3} \left (3 \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}-\frac {1}{27\ 3^{2/3} \left (3 \sqrt [3]{3}+\sqrt [3]{-1} x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}-\frac {1}{27\ 3^{2/3} \left (3 \sqrt [3]{3}-(-1)^{2/3} x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}\right ) \, dx-\int \left (-\frac {1}{3 \left (-3 \sqrt [3]{-3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}-\frac {1}{3 \left (3 \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}-\frac {1}{3 \left (3 (-1)^{2/3} \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )}\right ) \, dx-\int \frac {1}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ & = \frac {1}{3} \int \frac {1}{\left (-3 \sqrt [3]{-3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\frac {1}{3} \int \frac {1}{\left (3 \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\frac {1}{3} \int \frac {1}{\left (3 (-1)^{2/3} \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\frac {2}{3} \int \frac {1}{x \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\left (3 \sqrt [3]{3}\right ) \int \frac {1}{\left (3 \sqrt [3]{3}-x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\left (3 \sqrt [3]{3}\right ) \int \frac {1}{\left (3 \sqrt [3]{3}+\sqrt [3]{-1} x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\left (3 \sqrt [3]{3}\right ) \int \frac {1}{\left (3 \sqrt [3]{3}-(-1)^{2/3} x\right ) \left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx-\int \frac {1}{\left (3+\log \left (-\frac {81}{x^2}+x\right )\right ) \log ^2\left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx+\int \frac {1}{\log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \, dx \\ \end{align*}
Time = 0.33 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.16 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=-\frac {-1-3 x}{3 \log \left (3+\log \left (-\frac {81}{x^2}+x\right )\right )} \]
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Time = 6.43 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.21
method | result | size |
parallelrisch | \(\frac {972+2916 x}{2916 \ln \left (\ln \left (\frac {x^{3}-81}{x^{2}}\right )+3\right )}\) | \(23\) |
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Time = 0.25 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.16 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\frac {3 \, x + 1}{3 \, \log \left (\log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 3\right )} \]
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Time = 0.09 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.00 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\frac {3 x + 1}{3 \log {\left (\log {\left (\frac {x^{3} - 81}{x^{2}} \right )} + 3 \right )}} \]
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Time = 0.30 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.16 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\frac {3 \, x + 1}{3 \, \log \left (\log \left (x^{3} - 81\right ) - 2 \, \log \left (x\right ) + 3\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 87 vs. \(2 (20) = 40\).
Time = 0.65 (sec) , antiderivative size = 87, normalized size of antiderivative = 4.58 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=\frac {3 \, x \log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 9 \, x + \log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 3}{3 \, {\left (\log \left (x^{3} - 81\right ) \log \left (\log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 3\right ) - \log \left (x^{2}\right ) \log \left (\log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 3\right ) + 3 \, \log \left (\log \left (\frac {x^{3} - 81}{x^{2}}\right ) + 3\right )\right )}} \]
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Time = 12.17 (sec) , antiderivative size = 101, normalized size of antiderivative = 5.32 \[ \int \frac {-162-486 x-x^3-3 x^4+\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log \left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )}{\left (-729 x+9 x^4+\left (-243 x+3 x^4\right ) \log \left (\frac {-81+x^3}{x^2}\right )\right ) \log ^2\left (3+\log \left (\frac {-81+x^3}{x^2}\right )\right )} \, dx=3\,x-\frac {729\,x}{x^3+162}+\frac {x-\frac {x\,\ln \left (\ln \left (\frac {x^3-81}{x^2}\right )+3\right )\,\left (x^3-81\right )\,\left (\ln \left (\frac {x^3-81}{x^2}\right )+3\right )}{x^3+162}+\frac {1}{3}}{\ln \left (\ln \left (\frac {x^3-81}{x^2}\right )+3\right )}-\frac {\ln \left (\frac {x^3-81}{x^2}\right )\,\left (81\,x-x^4\right )}{x^3+162} \]
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