Integrand size = 37, antiderivative size = 19 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=9 \left (-3+e^x+e^{x \left (\frac {1}{x^2}+x\right )}-x\right ) \]
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Time = 0.08 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.05, number of steps used = 5, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.081, Rules used = {14, 2225, 6838} \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=9 e^{x^2+\frac {1}{x}}-9 x+9 e^x \]
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Rule 14
Rule 2225
Rule 6838
Rubi steps \begin{align*} \text {integral}& = \int \left (9 \left (-1+e^x\right )+\frac {9 e^{\frac {1}{x}+x^2} \left (-1+2 x^3\right )}{x^2}\right ) \, dx \\ & = 9 \int \left (-1+e^x\right ) \, dx+9 \int \frac {e^{\frac {1}{x}+x^2} \left (-1+2 x^3\right )}{x^2} \, dx \\ & = 9 e^{\frac {1}{x}+x^2}-9 x+9 \int e^x \, dx \\ & = 9 e^x+9 e^{\frac {1}{x}+x^2}-9 x \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.95 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=9 \left (e^x+e^{\frac {1}{x}+x^2}-x\right ) \]
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Time = 0.34 (sec) , antiderivative size = 21, normalized size of antiderivative = 1.11
method | result | size |
parallelrisch | \(-9 x +9 \,{\mathrm e}^{x}+9 \,{\mathrm e}^{\frac {x^{3}+1}{x}}\) | \(21\) |
parts | \(-9 x +9 \,{\mathrm e}^{x}+9 \,{\mathrm e}^{\frac {x^{3}+1}{x}}\) | \(21\) |
risch | \(-9 x +9 \,{\mathrm e}^{x}+9 \,{\mathrm e}^{\frac {\left (1+x \right ) \left (x^{2}-x +1\right )}{x}}\) | \(27\) |
norman | \(\frac {-9 x^{2}+9 \,{\mathrm e}^{x} x +9 \,{\mathrm e}^{\frac {x^{3}+1}{x}} x}{x}\) | \(29\) |
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Time = 0.25 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.05 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=-9 \, x + 9 \, e^{x} + 9 \, e^{\left (\frac {x^{3} + 1}{x}\right )} \]
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Time = 0.10 (sec) , antiderivative size = 17, normalized size of antiderivative = 0.89 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=- 9 x + 9 e^{x} + 9 e^{\frac {x^{3} + 1}{x}} \]
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Time = 0.23 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.95 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=-9 \, x + 9 \, e^{\left (x^{2} + \frac {1}{x}\right )} + 9 \, e^{x} \]
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Time = 0.27 (sec) , antiderivative size = 20, normalized size of antiderivative = 1.05 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=-9 \, x + 9 \, e^{x} + 9 \, e^{\left (\frac {x^{3} + 1}{x}\right )} \]
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Time = 11.85 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.95 \[ \int \frac {-9 x^2+9 e^x x^2+e^{\frac {1+x^3}{x}} \left (-9+18 x^3\right )}{x^2} \, dx=9\,{\mathrm {e}}^{\frac {1}{x}+x^2}-9\,x+9\,{\mathrm {e}}^x \]
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