Integrand size = 21, antiderivative size = 17 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {1}{4} e^x x \left (-x+16 x^2\right ) \]
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Time = 0.05 (sec) , antiderivative size = 19, normalized size of antiderivative = 1.12, number of steps used = 13, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.238, Rules used = {12, 1608, 2227, 2207, 2225} \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=4 e^x x^3-\frac {e^x x^2}{4} \]
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Rule 12
Rule 1608
Rule 2207
Rule 2225
Rule 2227
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} \int e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx \\ & = \frac {1}{4} \int e^x x \left (-2+47 x+16 x^2\right ) \, dx \\ & = \frac {1}{4} \int \left (-2 e^x x+47 e^x x^2+16 e^x x^3\right ) \, dx \\ & = -\left (\frac {1}{2} \int e^x x \, dx\right )+4 \int e^x x^3 \, dx+\frac {47}{4} \int e^x x^2 \, dx \\ & = -\frac {e^x x}{2}+\frac {47 e^x x^2}{4}+4 e^x x^3+\frac {\int e^x \, dx}{2}-12 \int e^x x^2 \, dx-\frac {47}{2} \int e^x x \, dx \\ & = \frac {e^x}{2}-24 e^x x-\frac {e^x x^2}{4}+4 e^x x^3+\frac {47 \int e^x \, dx}{2}+24 \int e^x x \, dx \\ & = 24 e^x-\frac {e^x x^2}{4}+4 e^x x^3-24 \int e^x \, dx \\ & = -\frac {1}{4} e^x x^2+4 e^x x^3 \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {1}{4} e^x x^2 (-1+16 x) \]
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Time = 0.05 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.76
method | result | size |
gosper | \(\frac {{\mathrm e}^{x} \left (16 x -1\right ) x^{2}}{4}\) | \(13\) |
default | \(-\frac {{\mathrm e}^{x} x^{2}}{4}+4 \,{\mathrm e}^{x} x^{3}\) | \(16\) |
norman | \(-\frac {{\mathrm e}^{x} x^{2}}{4}+4 \,{\mathrm e}^{x} x^{3}\) | \(16\) |
risch | \(\frac {\left (16 x^{3}-x^{2}\right ) {\mathrm e}^{x}}{4}\) | \(16\) |
parallelrisch | \(-\frac {{\mathrm e}^{x} x^{2}}{4}+4 \,{\mathrm e}^{x} x^{3}\) | \(16\) |
parts | \(-\frac {{\mathrm e}^{x} x^{2}}{4}+4 \,{\mathrm e}^{x} x^{3}\) | \(16\) |
meijerg | \(-\left (-4 x^{3}+12 x^{2}-24 x +24\right ) {\mathrm e}^{x}+\frac {47 \left (3 x^{2}-6 x +6\right ) {\mathrm e}^{x}}{12}+\frac {\left (2-2 x \right ) {\mathrm e}^{x}}{4}\) | \(44\) |
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Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {1}{4} \, {\left (16 \, x^{3} - x^{2}\right )} e^{x} \]
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Time = 0.04 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {\left (16 x^{3} - x^{2}\right ) e^{x}}{4} \]
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Leaf count of result is larger than twice the leaf count of optimal. 37 vs. \(2 (14) = 28\).
Time = 0.21 (sec) , antiderivative size = 37, normalized size of antiderivative = 2.18 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=4 \, {\left (x^{3} - 3 \, x^{2} + 6 \, x - 6\right )} e^{x} + \frac {47}{4} \, {\left (x^{2} - 2 \, x + 2\right )} e^{x} - \frac {1}{2} \, {\left (x - 1\right )} e^{x} \]
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Time = 0.26 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {1}{4} \, {\left (16 \, x^{3} - x^{2}\right )} e^{x} \]
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Time = 11.99 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.71 \[ \int \frac {1}{4} e^x \left (-2 x+47 x^2+16 x^3\right ) \, dx=\frac {x^2\,{\mathrm {e}}^x\,\left (16\,x-1\right )}{4} \]
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