Integrand size = 91, antiderivative size = 22 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=\frac {x^2}{-4-3 e+\left (-e^2+2 x\right )^2} \]
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Time = 0.09 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.82, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.044, Rules used = {6, 1607, 1694, 790} \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=-\frac {4 e^2 x-e^4+3 e+4}{4 \left (-4 \left (x-\frac {e^2}{2}\right )^2+3 e+4\right )} \]
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Rule 6
Rule 790
Rule 1607
Rule 1694
Rubi steps \begin{align*} \text {integral}& = \int \frac {(-8-6 e) x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx \\ & = \int \frac {\left (-8-6 e+2 e^4\right ) x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx \\ & = \int \frac {x \left (-8-6 e+2 e^4-4 e^2 x\right )}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx \\ & = \text {Subst}\left (\int \frac {\left (e^2+2 x\right ) \left (-4-3 e-2 e^2 x\right )}{\left (4+3 e-4 x^2\right )^2} \, dx,x,-\frac {e^2}{2}+x\right ) \\ & = -\frac {4+3 e-e^4+4 e^2 x}{4 \left (4+3 e-4 \left (-\frac {e^2}{2}+x\right )^2\right )} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.86 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=\frac {4+3 e-e^4+4 e^2 x}{4 \left (-4-3 e+e^4-4 e^2 x+4 x^2\right )} \]
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Time = 0.15 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.64
method | result | size |
risch | \(\frac {{\mathrm e}^{2} x -\frac {{\mathrm e}^{4}}{4}+\frac {3 \,{\mathrm e}}{4}+1}{{\mathrm e}^{4}-4 \,{\mathrm e}^{2} x +4 x^{2}-3 \,{\mathrm e}-4}\) | \(36\) |
gosper | \(-\frac {{\mathrm e}^{4}-4 \,{\mathrm e}^{2} x -3 \,{\mathrm e}-4}{4 \left ({\mathrm e}^{4}-4 \,{\mathrm e}^{2} x +4 x^{2}-3 \,{\mathrm e}-4\right )}\) | \(40\) |
norman | \(\frac {{\mathrm e}^{2} x -\frac {{\mathrm e}^{4}}{4}+\frac {3 \,{\mathrm e}}{4}+1}{{\mathrm e}^{4}-4 \,{\mathrm e}^{2} x +4 x^{2}-3 \,{\mathrm e}-4}\) | \(40\) |
parallelrisch | \(\frac {-{\mathrm e}^{4}+4 \,{\mathrm e}^{2} x +3 \,{\mathrm e}+4}{4 \,{\mathrm e}^{4}-16 \,{\mathrm e}^{2} x +16 x^{2}-12 \,{\mathrm e}-16}\) | \(42\) |
default | \(-\frac {\left (\munderset {\textit {\_R} =\operatorname {RootOf}\left (16 \textit {\_Z}^{4}-32 \textit {\_Z}^{3} {\mathrm e}^{2}+\left (24 \,{\mathrm e}^{4}-24 \,{\mathrm e}-32\right ) \textit {\_Z}^{2}+\left (-8 \,{\mathrm e}^{6}+24 \,{\mathrm e}^{3}+32 \,{\mathrm e}^{2}\right ) \textit {\_Z} +{\mathrm e}^{8}+16-6 \,{\mathrm e}^{5}-8 \,{\mathrm e}^{4}+9 \,{\mathrm e}^{2}+24 \,{\mathrm e}\right )}{\sum }\frac {\left (2 \textit {\_R}^{2} {\mathrm e}^{2}+\left (-{\mathrm e}^{4}+4+3 \,{\mathrm e}\right ) \textit {\_R} \right ) \ln \left (x -\textit {\_R} \right )}{-{\mathrm e}^{6}+6 \textit {\_R} \,{\mathrm e}^{4}-12 \textit {\_R}^{2} {\mathrm e}^{2}+8 \textit {\_R}^{3}+3 \,{\mathrm e}^{3}-6 \textit {\_R} \,{\mathrm e}+4 \,{\mathrm e}^{2}-8 \textit {\_R}}\right )}{4}\) | \(135\) |
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Time = 0.23 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.68 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=\frac {4 \, x e^{2} - e^{4} + 3 \, e + 4}{4 \, {\left (4 \, x^{2} - 4 \, x e^{2} + e^{4} - 3 \, e - 4\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 41 vs. \(2 (17) = 34\).
Time = 0.61 (sec) , antiderivative size = 41, normalized size of antiderivative = 1.86 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=- \frac {- 4 x e^{2} - 3 e - 4 + e^{4}}{16 x^{2} - 16 x e^{2} - 12 e - 16 + 4 e^{4}} \]
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Time = 0.20 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.68 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=\frac {4 \, x e^{2} - e^{4} + 3 \, e + 4}{4 \, {\left (4 \, x^{2} - 4 \, x e^{2} + e^{4} - 3 \, e - 4\right )}} \]
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Time = 0.29 (sec) , antiderivative size = 37, normalized size of antiderivative = 1.68 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=\frac {4 \, x e^{2} - e^{4} + 3 \, e + 4}{4 \, {\left (4 \, x^{2} - 4 \, x e^{2} + e^{4} - 3 \, e - 4\right )}} \]
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Time = 0.23 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.73 \[ \int \frac {-8 x-6 e x+2 e^4 x-4 e^2 x^2}{16+9 e^2+e^8-8 e^6 x-32 x^2+16 x^4+e \left (24-24 x^2\right )+e^4 \left (-8-6 e+24 x^2\right )+e^2 \left (32 x+24 e x-32 x^3\right )} \, dx=-\frac {\frac {3\,\mathrm {e}}{4}-\frac {{\mathrm {e}}^4}{4}+x\,{\mathrm {e}}^2+1}{-4\,x^2+4\,{\mathrm {e}}^2\,x+3\,\mathrm {e}-{\mathrm {e}}^4+4} \]
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