Integrand size = 21, antiderivative size = 17 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2-e^{-4 x}+7 e^x+2 x \]
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Time = 0.01 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.94, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.095, Rules used = {2320, 14} \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2 x-e^{-4 x}+7 e^x \]
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Rule 14
Rule 2320
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {2+\frac {4}{x^4}+7 x}{x} \, dx,x,e^x\right ) \\ & = \text {Subst}\left (\int \left (7+\frac {4}{x^5}+\frac {2}{x}\right ) \, dx,x,e^x\right ) \\ & = -e^{-4 x}+7 e^x+2 x \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.94 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=-e^{-4 x}+7 e^x+2 x \]
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Time = 0.10 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88
method | result | size |
default | \(2 x -{\mathrm e}^{-4 x}+7 \,{\mathrm e}^{x}\) | \(15\) |
risch | \(2 x -{\mathrm e}^{-4 x}+7 \,{\mathrm e}^{x}\) | \(15\) |
parts | \(2 x -{\mathrm e}^{-4 x}+7 \,{\mathrm e}^{x}\) | \(17\) |
norman | \(\left (-1+7 \,{\mathrm e}^{5 x}+2 x \,{\mathrm e}^{4 x}\right ) {\mathrm e}^{-4 x}\) | \(21\) |
parallelrisch | \(\left (-1+2 x \,{\mathrm e}^{4 x}+7 \,{\mathrm e}^{x} {\mathrm e}^{4 x}\right ) {\mathrm e}^{-4 x}\) | \(29\) |
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none
Time = 0.25 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.18 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx={\left (2 \, x e^{\left (4 \, x\right )} + 7 \, e^{\left (5 \, x\right )} - 1\right )} e^{\left (-4 \, x\right )} \]
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Time = 0.06 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2 x + 7 e^{x} - e^{- 4 x} \]
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none
Time = 0.21 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2 \, x - e^{\left (-4 \, x\right )} + 7 \, e^{x} \]
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none
Time = 0.26 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2 \, x - e^{\left (-4 \, x\right )} + 7 \, e^{x} \]
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Time = 9.78 (sec) , antiderivative size = 14, normalized size of antiderivative = 0.82 \[ \int e^{-4 x} \left (4+e^{4 x} \left (2+7 e^x\right )\right ) \, dx=2\,x-{\mathrm {e}}^{-4\,x}+7\,{\mathrm {e}}^x \]
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