Integrand size = 37, antiderivative size = 21 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=-3+e^{-3+\frac {9}{x}}-e^{\frac {2}{5}+x}+x \]
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Time = 0.03 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95, number of steps used = 6, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.081, Rules used = {14, 2225, 2240} \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x+e^{\frac {9}{x}-3}-e^{x+\frac {2}{5}} \]
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Rule 14
Rule 2225
Rule 2240
Rubi steps \begin{align*} \text {integral}& = \int \left (-e^{\frac {2}{5}+x}+\frac {-9 e^{9/x}+e^3 x^2}{e^3 x^2}\right ) \, dx \\ & = \frac {\int \frac {-9 e^{9/x}+e^3 x^2}{x^2} \, dx}{e^3}-\int e^{\frac {2}{5}+x} \, dx \\ & = -e^{\frac {2}{5}+x}+\frac {\int \left (e^3-\frac {9 e^{9/x}}{x^2}\right ) \, dx}{e^3} \\ & = -e^{\frac {2}{5}+x}+x-\frac {9 \int \frac {e^{9/x}}{x^2} \, dx}{e^3} \\ & = e^{-3+\frac {9}{x}}-e^{\frac {2}{5}+x}+x \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=e^{-3+\frac {9}{x}}-e^{\frac {2}{5}+x}+x \]
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Time = 0.08 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.86
method | result | size |
default | \(x -{\mathrm e}^{x} {\mathrm e}^{\frac {2}{5}}+{\mathrm e}^{\frac {9}{x}} {\mathrm e}^{-3}\) | \(18\) |
risch | \(x -{\mathrm e}^{x +\frac {2}{5}}+{\mathrm e}^{-\frac {3 \left (-3+x \right )}{x}}\) | \(18\) |
parallelrisch | \(x -{\mathrm e}^{x +\frac {2}{5}}+{\mathrm e}^{-\frac {3 \left (-3+x \right )}{x}}\) | \(18\) |
parts | \(x -{\mathrm e}^{x +\frac {2}{5}}+{\mathrm e}^{\frac {-3 x +9}{x}}\) | \(19\) |
norman | \(\frac {x^{2}+x \,{\mathrm e}^{\frac {-3 x +9}{x}}-x \,{\mathrm e}^{x +\frac {2}{5}}}{x}\) | \(28\) |
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Time = 0.26 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x - e^{\left (x + \frac {2}{5}\right )} + e^{\left (-\frac {3 \, {\left (x - 3\right )}}{x}\right )} \]
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Time = 0.10 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.71 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x + e^{\frac {9 - 3 x}{x}} - e^{x + \frac {2}{5}} \]
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Time = 0.20 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.76 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x - e^{\left (x + \frac {2}{5}\right )} + e^{\left (\frac {9}{x} - 3\right )} \]
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Time = 0.28 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.76 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x - e^{\left (x + \frac {2}{5}\right )} + e^{\left (\frac {9}{x} - 3\right )} \]
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Time = 12.34 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.81 \[ \int \frac {-9 e^{\frac {9-3 x}{x}}+x^2-e^{\frac {1}{5} (2+5 x)} x^2}{x^2} \, dx=x+{\mathrm {e}}^{-3}\,{\mathrm {e}}^{9/x}-{\mathrm {e}}^{2/5}\,{\mathrm {e}}^x \]
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