Integrand size = 55, antiderivative size = 20 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-\left (3-e^3-x\right )^2+\frac {1}{(2+x)^2} \]
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Time = 0.04 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.05, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.018, Rules used = {2099} \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-x^2+2 \left (3-e^3\right ) x+\frac {1}{(x+2)^2} \]
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Rule 2099
Rubi steps \begin{align*} \text {integral}& = \int \left (-2 \left (-3+e^3\right )-2 x-\frac {2}{(2+x)^3}\right ) \, dx \\ & = 2 \left (3-e^3\right ) x-x^2+\frac {1}{(2+x)^2} \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.50 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-2 \left (-\frac {1}{2 (2+x)^2}+\left (-5+e^3\right ) (2+x)+\frac {1}{2} (2+x)^2\right ) \]
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Time = 0.07 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00
method | result | size |
default | \(-2 x \,{\mathrm e}^{3}+6 x -x^{2}+\frac {1}{\left (2+x \right )^{2}}\) | \(20\) |
risch | \(-2 x \,{\mathrm e}^{3}-x^{2}+6 x +\frac {1}{x^{2}+4 x +4}\) | \(25\) |
norman | \(\frac {\left (-2 \,{\mathrm e}^{3}+2\right ) x^{3}+\left (-56+24 \,{\mathrm e}^{3}\right ) x -x^{4}-79+32 \,{\mathrm e}^{3}}{\left (2+x \right )^{2}}\) | \(36\) |
gosper | \(-\frac {2 x^{3} {\mathrm e}^{3}+x^{4}-2 x^{3}-24 x \,{\mathrm e}^{3}-32 \,{\mathrm e}^{3}+56 x +79}{x^{2}+4 x +4}\) | \(42\) |
parallelrisch | \(-\frac {2 x^{3} {\mathrm e}^{3}+x^{4}-2 x^{3}-24 x \,{\mathrm e}^{3}-32 \,{\mathrm e}^{3}+56 x +79}{x^{2}+4 x +4}\) | \(42\) |
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Leaf count of result is larger than twice the leaf count of optimal. 46 vs. \(2 (15) = 30\).
Time = 0.24 (sec) , antiderivative size = 46, normalized size of antiderivative = 2.30 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-\frac {x^{4} - 2 \, x^{3} - 20 \, x^{2} + 2 \, {\left (x^{3} + 4 \, x^{2} + 4 \, x\right )} e^{3} - 24 \, x - 1}{x^{2} + 4 \, x + 4} \]
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Time = 0.07 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.00 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=- x^{2} - x \left (-6 + 2 e^{3}\right ) + \frac {1}{x^{2} + 4 x + 4} \]
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none
Time = 0.19 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.15 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-x^{2} - 2 \, x {\left (e^{3} - 3\right )} + \frac {1}{x^{2} + 4 \, x + 4} \]
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none
Time = 0.26 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.95 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=-x^{2} - 2 \, x e^{3} + 6 \, x + \frac {1}{{\left (x + 2\right )}^{2}} \]
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Time = 8.35 (sec) , antiderivative size = 25, normalized size of antiderivative = 1.25 \[ \int \frac {46+56 x+12 x^2-6 x^3-2 x^4+e^3 \left (-16-24 x-12 x^2-2 x^3\right )}{8+12 x+6 x^2+x^3} \, dx=\frac {1}{x^2+4\,x+4}-x^2-x\,\left (2\,{\mathrm {e}}^3-6\right ) \]
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