Integrand size = 52, antiderivative size = 28 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=e^{-x (2+(5-x) x (3+x))}-\frac {e^3}{2 x} \]
[Out]
Time = 0.06 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.07, number of steps used = 4, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.058, Rules used = {12, 14, 6838} \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=e^{x^4-2 x^3-15 x^2-2 x}-\frac {e^3}{2 x} \]
[In]
[Out]
Rule 12
Rule 14
Rule 6838
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{x^2} \, dx \\ & = \frac {1}{2} \int \left (\frac {e^3}{x^2}+4 e^{-2 x-15 x^2-2 x^3+x^4} \left (-1-15 x-3 x^2+2 x^3\right )\right ) \, dx \\ & = -\frac {e^3}{2 x}+2 \int e^{-2 x-15 x^2-2 x^3+x^4} \left (-1-15 x-3 x^2+2 x^3\right ) \, dx \\ & = e^{-2 x-15 x^2-2 x^3+x^4}-\frac {e^3}{2 x} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 28, normalized size of antiderivative = 1.00 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=e^{x \left (-2-15 x-2 x^2+x^3\right )}-\frac {e^3}{2 x} \]
[In]
[Out]
Time = 0.12 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.89
method | result | size |
risch | \(-\frac {{\mathrm e}^{3}}{2 x}+{\mathrm e}^{x \left (x^{3}-2 x^{2}-15 x -2\right )}\) | \(25\) |
parts | \(-\frac {{\mathrm e}^{3}}{2 x}+{\mathrm e}^{x^{4}-2 x^{3}-15 x^{2}-2 x}\) | \(27\) |
norman | \(\frac {{\mathrm e}^{x^{4}-2 x^{3}-15 x^{2}-2 x} x -\frac {{\mathrm e}^{3}}{2}}{x}\) | \(30\) |
parallelrisch | \(-\frac {-2 \,{\mathrm e}^{x^{4}-2 x^{3}-15 x^{2}-2 x} x +{\mathrm e}^{3}}{2 x}\) | \(30\) |
[In]
[Out]
none
Time = 0.29 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.11 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=\frac {2 \, x e^{\left (x^{4} - 2 \, x^{3} - 15 \, x^{2} - 2 \, x\right )} - e^{3}}{2 \, x} \]
[In]
[Out]
Time = 0.07 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.86 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=e^{x^{4} - 2 x^{3} - 15 x^{2} - 2 x} - \frac {e^{3}}{2 x} \]
[In]
[Out]
none
Time = 0.29 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.93 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=-\frac {e^{3}}{2 \, x} + e^{\left (x^{4} - 2 \, x^{3} - 15 \, x^{2} - 2 \, x\right )} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.11 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx=\frac {2 \, x e^{\left (x^{4} - 2 \, x^{3} - 15 \, x^{2} - 2 \, x\right )} - e^{3}}{2 \, x} \]
[In]
[Out]
Time = 13.93 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.04 \[ \int \frac {e^3+e^{-2 x-15 x^2-2 x^3+x^4} \left (-4 x^2-60 x^3-12 x^4+8 x^5\right )}{2 x^2} \, dx={\mathrm {e}}^{-2\,x}\,{\mathrm {e}}^{x^4}\,{\mathrm {e}}^{-2\,x^3}\,{\mathrm {e}}^{-15\,x^2}-\frac {{\mathrm {e}}^3}{2\,x} \]
[In]
[Out]