Integrand size = 85, antiderivative size = 28 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=2-\frac {(3-x) x}{-1-2 e^{-2-x}+\frac {3}{x}} \]
[Out]
\[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=\int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx \]
[In]
[Out]
Rubi steps \begin{align*} \text {integral}& = \int \frac {2 e^{2+x} x \left (-e^{2+x} (-3+x)^2-x \left (-3-x+x^2\right )\right )}{\left (e^{2+x} (-3+x)+2 x\right )^2} \, dx \\ & = 2 \int \frac {e^{2+x} x \left (-e^{2+x} (-3+x)^2-x \left (-3-x+x^2\right )\right )}{\left (e^{2+x} (-3+x)+2 x\right )^2} \, dx \\ & = 2 \int \left (-\frac {e^{2+x} (-3+x) x}{-3 e^{2+x}+2 x+e^{2+x} x}-\frac {e^{2+x} x^2 \left (3-3 x+x^2\right )}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2}\right ) \, dx \\ & = -\left (2 \int \frac {e^{2+x} (-3+x) x}{-3 e^{2+x}+2 x+e^{2+x} x} \, dx\right )-2 \int \frac {e^{2+x} x^2 \left (3-3 x+x^2\right )}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2} \, dx \\ & = -\left (2 \int \left (\frac {3 e^{2+x} x^2}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2}-\frac {3 e^{2+x} x^3}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2}+\frac {e^{2+x} x^4}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2}\right ) \, dx\right )-2 \int \left (-\frac {3 e^{2+x} x}{-3 e^{2+x}+2 x+e^{2+x} x}+\frac {e^{2+x} x^2}{-3 e^{2+x}+2 x+e^{2+x} x}\right ) \, dx \\ & = -\left (2 \int \frac {e^{2+x} x^4}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2} \, dx\right )-2 \int \frac {e^{2+x} x^2}{-3 e^{2+x}+2 x+e^{2+x} x} \, dx-6 \int \frac {e^{2+x} x^2}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2} \, dx+6 \int \frac {e^{2+x} x^3}{\left (-3 e^{2+x}+2 x+e^{2+x} x\right )^2} \, dx+6 \int \frac {e^{2+x} x}{-3 e^{2+x}+2 x+e^{2+x} x} \, dx \\ \end{align*}
Time = 3.20 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.04 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=-\frac {2 e^{2+x} (-3+x) x^2}{2 e^{2+x} (-3+x)+4 x} \]
[In]
[Out]
Time = 0.20 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.07
method | result | size |
risch | \(-x^{2}+\frac {2 x^{3}}{x \,{\mathrm e}^{2+x}-3 \,{\mathrm e}^{2+x}+2 x}\) | \(30\) |
norman | \(\frac {3 x^{2} {\mathrm e}^{2+x}-{\mathrm e}^{2+x} x^{3}}{x \,{\mathrm e}^{2+x}-3 \,{\mathrm e}^{2+x}+2 x}\) | \(39\) |
parallelrisch | \(-\frac {{\mathrm e}^{2+x} x^{3}-3 x^{2} {\mathrm e}^{2+x}}{x \,{\mathrm e}^{2+x}-3 \,{\mathrm e}^{2+x}+2 x}\) | \(39\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.04 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=-\frac {{\left (x^{3} - 3 \, x^{2}\right )} e^{\left (x + 2\right )}}{{\left (x - 3\right )} e^{\left (x + 2\right )} + 2 \, x} \]
[In]
[Out]
Time = 0.08 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.68 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=\frac {2 x^{3}}{2 x + \left (x - 3\right ) e^{x + 2}} - x^{2} \]
[In]
[Out]
none
Time = 0.26 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.29 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=-\frac {{\left (x^{3} e^{2} - 3 \, x^{2} e^{2}\right )} e^{x}}{{\left (x e^{2} - 3 \, e^{2}\right )} e^{x} + 2 \, x} \]
[In]
[Out]
none
Time = 0.29 (sec) , antiderivative size = 38, normalized size of antiderivative = 1.36 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=-\frac {x^{3} e^{\left (x + 2\right )} - 3 \, x^{2} e^{\left (x + 2\right )}}{x e^{\left (x + 2\right )} + 2 \, x - 3 \, e^{\left (x + 2\right )}} \]
[In]
[Out]
Time = 0.21 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.07 \[ \int \frac {e^{4+2 x} \left (-18 x+12 x^2-2 x^3\right )+e^{2+x} \left (6 x^2+2 x^3-2 x^4\right )}{4 x^2+e^{4+2 x} \left (9-6 x+x^2\right )+e^{2+x} \left (-12 x+4 x^2\right )} \, dx=-\frac {x^2\,{\mathrm {e}}^{x+2}\,\left (x-3\right )}{2\,x-3\,{\mathrm {e}}^{x+2}+x\,{\mathrm {e}}^{x+2}} \]
[In]
[Out]