Integrand size = 43, antiderivative size = 13 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {3+x}{8+e^x x} \]
[Out]
\[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx \]
[In]
[Out]
Rubi steps \begin{align*} \text {integral}& = \int \frac {8-e^x \left (3+3 x+x^2\right )}{\left (8+e^x x\right )^2} \, dx \\ & = \int \left (-\frac {3+3 x+x^2}{x \left (8+e^x x\right )}+\frac {8 \left (3+4 x+x^2\right )}{x \left (8+e^x x\right )^2}\right ) \, dx \\ & = 8 \int \frac {3+4 x+x^2}{x \left (8+e^x x\right )^2} \, dx-\int \frac {3+3 x+x^2}{x \left (8+e^x x\right )} \, dx \\ & = 8 \int \left (\frac {4}{\left (8+e^x x\right )^2}+\frac {3}{x \left (8+e^x x\right )^2}+\frac {x}{\left (8+e^x x\right )^2}\right ) \, dx-\int \left (\frac {3}{8+e^x x}+\frac {3}{x \left (8+e^x x\right )}+\frac {x}{8+e^x x}\right ) \, dx \\ & = -\left (3 \int \frac {1}{8+e^x x} \, dx\right )-3 \int \frac {1}{x \left (8+e^x x\right )} \, dx+8 \int \frac {x}{\left (8+e^x x\right )^2} \, dx+24 \int \frac {1}{x \left (8+e^x x\right )^2} \, dx+32 \int \frac {1}{\left (8+e^x x\right )^2} \, dx-\int \frac {x}{8+e^x x} \, dx \\ \end{align*}
Time = 0.30 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {3+x}{8+e^x x} \]
[In]
[Out]
Time = 0.06 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00
method | result | size |
risch | \(\frac {3+x}{8+{\mathrm e}^{x} x}\) | \(13\) |
norman | \(\frac {3+x}{8+{\mathrm e}^{x +\ln \left (x \right )}}\) | \(14\) |
parallelrisch | \(\frac {3+x}{8+{\mathrm e}^{x +\ln \left (x \right )}}\) | \(14\) |
[In]
[Out]
none
Time = 0.23 (sec) , antiderivative size = 13, normalized size of antiderivative = 1.00 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {x + 3}{e^{\left (x + \log \left (x\right )\right )} + 8} \]
[In]
[Out]
Time = 0.05 (sec) , antiderivative size = 8, normalized size of antiderivative = 0.62 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {x + 3}{x e^{x} + 8} \]
[In]
[Out]
none
Time = 0.24 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.92 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {x + 3}{x e^{x} + 8} \]
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.92 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {x + 3}{x e^{x} + 8} \]
[In]
[Out]
Time = 10.42 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.92 \[ \int \frac {8 x+e^x x \left (-3-3 x-x^2\right )}{64 x+16 e^x x^2+e^{2 x} x^3} \, dx=\frac {x+3}{x\,{\mathrm {e}}^x+8} \]
[In]
[Out]