Integrand size = 243, antiderivative size = 36 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {e^{1-x} x (x-\log (2+x))}{\log \left (\log \left (\frac {x^2}{\left (-x+(4+x)^2\right )^2}\right )\right )} \]
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\[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4-2 \left (-32-16 x+2 x^2+x^3\right ) \log (2+x)-\left (16+7 x+x^2\right ) \left (x \left (-3+x^2\right )-\left (-2+x+x^2\right ) \log (2+x)\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx \\ & = \int \left (\frac {2 e^{1-x} \left (-16+x^2\right ) (x-\log (2+x))}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {e^{1-x} \left (3 x-x^3-2 \log (2+x)+x \log (2+x)+x^2 \log (2+x)\right )}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx \\ & = 2 \int \frac {e^{1-x} \left (-16+x^2\right ) (x-\log (2+x))}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+\int \frac {e^{1-x} \left (3 x-x^3-2 \log (2+x)+x \log (2+x)+x^2 \log (2+x)\right )}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx \\ & = 2 \int \left (\frac {e^{1-x} (x-\log (2+x))}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {e^{1-x} (32+7 x) (x-\log (2+x))}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx+\int \frac {e^{1-x} \left (-x \left (-3+x^2\right )+\left (-2+x+x^2\right ) \log (2+x)\right )}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx \\ & = 2 \int \frac {e^{1-x} (x-\log (2+x))}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-2 \int \frac {e^{1-x} (32+7 x) (x-\log (2+x))}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+\int \left (\frac {3 e^{1-x} x}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {e^{1-x} x^3}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {2 e^{1-x} \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {e^{1-x} x \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {e^{1-x} x^2 \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx \\ & = 2 \int \left (\frac {e^{1-x} x}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {e^{1-x} \log (2+x)}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx-2 \int \left (\frac {32 e^{1-x} x}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {7 e^{1-x} x^2}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {32 e^{1-x} \log (2+x)}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {7 e^{1-x} x \log (2+x)}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx-2 \int \frac {e^{1-x} \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+3 \int \frac {e^{1-x} x}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-\int \frac {e^{1-x} x^3}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+\int \frac {e^{1-x} x \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+\int \frac {e^{1-x} x^2 \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx \\ & = 2 \int \frac {e^{1-x} x}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-2 \int \frac {e^{1-x} \log (2+x)}{\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-2 \int \frac {e^{1-x} \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+3 \int \left (\frac {e^{1-x}}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {2 e^{1-x}}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx-14 \int \frac {e^{1-x} x^2}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+14 \int \frac {e^{1-x} x \log (2+x)}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-64 \int \frac {e^{1-x} x}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx+64 \int \frac {e^{1-x} \log (2+x)}{\left (16+7 x+x^2\right ) \log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right ) \log ^2\left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \, dx-\int \left (\frac {4 e^{1-x}}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {2 e^{1-x} x}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {e^{1-x} x^2}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {8 e^{1-x}}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx+\int \left (\frac {e^{1-x} \log (2+x)}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}-\frac {2 e^{1-x} \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx+\int \left (-\frac {2 e^{1-x} \log (2+x)}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {e^{1-x} x \log (2+x)}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}+\frac {4 e^{1-x} \log (2+x)}{(2+x) \log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )}\right ) \, dx \\ & = \text {Too large to display} \\ \end{align*}
Time = 0.27 (sec) , antiderivative size = 35, normalized size of antiderivative = 0.97 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {e^{1-x} x (x-\log (2+x))}{\log \left (\log \left (\frac {x^2}{\left (16+7 x+x^2\right )^2}\right )\right )} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 0.11 (sec) , antiderivative size = 195, normalized size of antiderivative = 5.42
\[\frac {x \left (x -\ln \left (2+x \right )\right ) {\mathrm e}^{1-x}}{\ln \left (2 \ln \left (x \right )-2 \ln \left (x^{2}+7 x +16\right )+\frac {i \pi \,\operatorname {csgn}\left (i \left (x^{2}+7 x +16\right )^{2}\right ) {\left (-\operatorname {csgn}\left (i \left (x^{2}+7 x +16\right )^{2}\right )+\operatorname {csgn}\left (i \left (x^{2}+7 x +16\right )\right )\right )}^{2}}{2}-\frac {i \pi \,\operatorname {csgn}\left (i x^{2}\right ) {\left (-\operatorname {csgn}\left (i x^{2}\right )+\operatorname {csgn}\left (i x \right )\right )}^{2}}{2}-\frac {i \pi \,\operatorname {csgn}\left (\frac {i x^{2}}{\left (x^{2}+7 x +16\right )^{2}}\right ) \left (-\operatorname {csgn}\left (\frac {i x^{2}}{\left (x^{2}+7 x +16\right )^{2}}\right )+\operatorname {csgn}\left (i x^{2}\right )\right ) \left (-\operatorname {csgn}\left (\frac {i x^{2}}{\left (x^{2}+7 x +16\right )^{2}}\right )+\operatorname {csgn}\left (\frac {i}{\left (x^{2}+7 x +16\right )^{2}}\right )\right )}{2}\right )}\]
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Time = 0.26 (sec) , antiderivative size = 53, normalized size of antiderivative = 1.47 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {x^{2} e^{\left (-x + 1\right )} - x e^{\left (-x + 1\right )} \log \left (x + 2\right )}{\log \left (\log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right )\right )} \]
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Time = 1.52 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.08 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {\left (x^{2} - x \log {\left (x + 2 \right )}\right ) e^{1 - x}}{\log {\left (\log {\left (\frac {x^{2}}{x^{4} + 14 x^{3} + 81 x^{2} + 224 x + 256} \right )} \right )}} \]
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Result contains complex when optimal does not.
Time = 0.39 (sec) , antiderivative size = 47, normalized size of antiderivative = 1.31 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {x^{2} e - x e \log \left (x + 2\right )}{{\left (i \, \pi + \log \left (2\right )\right )} e^{x} + e^{x} \log \left (\log \left (x^{2} + 7 \, x + 16\right ) - \log \left (x\right )\right )} \]
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\[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\int { \frac {{\left (2 \, x^{4} + 4 \, x^{3} - 32 \, x^{2} - 2 \, {\left (x^{3} + 2 \, x^{2} - 16 \, x - 32\right )} \log \left (x + 2\right ) + {\left ({\left (x^{4} + 8 \, x^{3} + 21 \, x^{2} + 2 \, x - 32\right )} \log \left (x + 2\right ) \log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right ) - {\left (x^{5} + 7 \, x^{4} + 13 \, x^{3} - 21 \, x^{2} - 48 \, x\right )} \log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right )\right )} \log \left (\log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right )\right ) - 64 \, x\right )} e^{\left (-x + 1\right )}}{{\left (x^{3} + 9 \, x^{2} + 30 \, x + 32\right )} \log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right ) \log \left (\log \left (\frac {x^{2}}{x^{4} + 14 \, x^{3} + 81 \, x^{2} + 224 \, x + 256}\right )\right )^{2}} \,d x } \]
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Time = 10.47 (sec) , antiderivative size = 82, normalized size of antiderivative = 2.28 \[ \int \frac {e^{1-x} \left (-64 x-32 x^2+4 x^3+2 x^4+\left (64+32 x-4 x^2-2 x^3\right ) \log (2+x)+\left (\left (48 x+21 x^2-13 x^3-7 x^4-x^5\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )+\left (-32+2 x+21 x^2+8 x^3+x^4\right ) \log (2+x) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right ) \log \left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )\right )}{\left (32+30 x+9 x^2+x^3\right ) \log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right ) \log ^2\left (\log \left (\frac {x^2}{256+224 x+81 x^2+14 x^3+x^4}\right )\right )} \, dx=\frac {x^2\,{\mathrm {e}}^{1-x}}{\ln \left (\ln \left (x^2\right )-\ln \left (x^4+14\,x^3+81\,x^2+224\,x+256\right )\right )}-\frac {x\,\ln \left (x+2\right )\,{\mathrm {e}}^{1-x}}{\ln \left (\ln \left (x^2\right )-\ln \left (x^4+14\,x^3+81\,x^2+224\,x+256\right )\right )} \]
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