Integrand size = 22, antiderivative size = 21 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=\frac {3+x}{e^8}-e^x \left (-4-x+x^2\right ) \]
[Out]
Time = 0.03 (sec) , antiderivative size = 24, normalized size of antiderivative = 1.14, number of steps used = 10, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {12, 2227, 2225, 2207} \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=-e^x x^2+e^x x+\frac {x}{e^8}+4 e^x \]
[In]
[Out]
Rule 12
Rule 2207
Rule 2225
Rule 2227
Rubi steps \begin{align*} \text {integral}& = \frac {\int \left (1+e^{8+x} \left (5-x-x^2\right )\right ) \, dx}{e^8} \\ & = \frac {x}{e^8}+\frac {\int e^{8+x} \left (5-x-x^2\right ) \, dx}{e^8} \\ & = \frac {x}{e^8}+\frac {\int \left (5 e^{8+x}-e^{8+x} x-e^{8+x} x^2\right ) \, dx}{e^8} \\ & = \frac {x}{e^8}-\frac {\int e^{8+x} x \, dx}{e^8}-\frac {\int e^{8+x} x^2 \, dx}{e^8}+\frac {5 \int e^{8+x} \, dx}{e^8} \\ & = 5 e^x+\frac {x}{e^8}-e^x x-e^x x^2+\frac {\int e^{8+x} \, dx}{e^8}+\frac {2 \int e^{8+x} x \, dx}{e^8} \\ & = 6 e^x+\frac {x}{e^8}+e^x x-e^x x^2-\frac {2 \int e^{8+x} \, dx}{e^8} \\ & = 4 e^x+\frac {x}{e^8}+e^x x-e^x x^2 \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.90 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=\frac {x}{e^8}-e^x \left (-4-x+x^2\right ) \]
[In]
[Out]
Time = 0.09 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00
method | result | size |
risch | \(-{\mathrm e}^{x} x^{2}+{\mathrm e}^{x} x +4 \,{\mathrm e}^{x}+x \,{\mathrm e}^{-8}\) | \(21\) |
parts | \(-{\mathrm e}^{x} x^{2}+{\mathrm e}^{x} x +4 \,{\mathrm e}^{x}+x \,{\mathrm e}^{-8}\) | \(23\) |
default | \({\mathrm e}^{-8} \left (x +{\mathrm e}^{8} \left ({\mathrm e}^{x} x +4 \,{\mathrm e}^{x}-{\mathrm e}^{x} x^{2}\right )\right )\) | \(29\) |
parallelrisch | \({\mathrm e}^{-8} \left (x +{\mathrm e}^{8} \left ({\mathrm e}^{x} x +4 \,{\mathrm e}^{x}-{\mathrm e}^{x} x^{2}\right )\right )\) | \(29\) |
norman | \(\left ({\mathrm e}^{-1} x +{\mathrm e}^{7} x \,{\mathrm e}^{x}+4 \,{\mathrm e}^{7} {\mathrm e}^{x}-x^{2} {\mathrm e}^{7} {\mathrm e}^{x}\right ) {\mathrm e}^{-7}\) | \(40\) |
[In]
[Out]
none
Time = 0.23 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=-{\left ({\left (x^{2} - x - 4\right )} e^{\left (x + 8\right )} - x\right )} e^{\left (-8\right )} \]
[In]
[Out]
Time = 0.06 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.67 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=\frac {x}{e^{8}} + \left (- x^{2} + x + 4\right ) e^{x} \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 45 vs. \(2 (19) = 38\).
Time = 0.19 (sec) , antiderivative size = 45, normalized size of antiderivative = 2.14 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=-{\left ({\left (x^{2} e^{8} - 2 \, x e^{8} + 2 \, e^{8}\right )} e^{x} + {\left (x e^{8} - e^{8}\right )} e^{x} - x - 5 \, e^{\left (x + 8\right )}\right )} e^{\left (-8\right )} \]
[In]
[Out]
none
Time = 0.27 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.00 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=-{\left ({\left (x^{2} - x - 4\right )} e^{\left (x + 8\right )} - x\right )} e^{\left (-8\right )} \]
[In]
[Out]
Time = 0.09 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {1+e^{8+x} \left (5-x-x^2\right )}{e^8} \, dx=4\,{\mathrm {e}}^x-x^2\,{\mathrm {e}}^x+x\,{\mathrm {e}}^{-8}+x\,{\mathrm {e}}^x \]
[In]
[Out]