Integrand size = 29, antiderivative size = 33 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-e^x+3 \left (-1+3 \left (1-\frac {3 (-5+x)^2 (-4+x)^2}{x^2}-x\right ) x\right ) \]
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Time = 0.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.73, number of steps used = 5, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.069, Rules used = {14, 2225} \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-27 x^3+477 x^2-3258 x-e^x-\frac {10800}{x} \]
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Rule 14
Rule 2225
Rubi steps \begin{align*} \text {integral}& = \int \left (-e^x-\frac {9 \left (-1200+362 x^2-106 x^3+9 x^4\right )}{x^2}\right ) \, dx \\ & = -\left (9 \int \frac {-1200+362 x^2-106 x^3+9 x^4}{x^2} \, dx\right )-\int e^x \, dx \\ & = -e^x-9 \int \left (362-\frac {1200}{x^2}-106 x+9 x^2\right ) \, dx \\ & = -e^x-\frac {10800}{x}-3258 x+477 x^2-27 x^3 \\ \end{align*}
Time = 0.02 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.73 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-e^x-\frac {10800}{x}-3258 x+477 x^2-27 x^3 \]
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Time = 0.06 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.73
method | result | size |
default | \(477 x^{2}-3258 x -\frac {10800}{x}-27 x^{3}-{\mathrm e}^{x}\) | \(24\) |
risch | \(477 x^{2}-3258 x -\frac {10800}{x}-27 x^{3}-{\mathrm e}^{x}\) | \(24\) |
parts | \(477 x^{2}-3258 x -\frac {10800}{x}-27 x^{3}-{\mathrm e}^{x}\) | \(24\) |
norman | \(\frac {-10800-3258 x^{2}+477 x^{3}-27 x^{4}-{\mathrm e}^{x} x}{x}\) | \(27\) |
parallelrisch | \(-\frac {27 x^{4}-477 x^{3}+{\mathrm e}^{x} x +3258 x^{2}+10800}{x}\) | \(27\) |
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none
Time = 0.25 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.79 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-\frac {27 \, x^{4} - 477 \, x^{3} + 3258 \, x^{2} + x e^{x} + 10800}{x} \]
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Time = 0.05 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.58 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=- 27 x^{3} + 477 x^{2} - 3258 x - e^{x} - \frac {10800}{x} \]
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none
Time = 0.19 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.70 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-27 \, x^{3} + 477 \, x^{2} - 3258 \, x - \frac {10800}{x} - e^{x} \]
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none
Time = 0.28 (sec) , antiderivative size = 26, normalized size of antiderivative = 0.79 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=-\frac {27 \, x^{4} - 477 \, x^{3} + 3258 \, x^{2} + x e^{x} + 10800}{x} \]
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Time = 0.08 (sec) , antiderivative size = 23, normalized size of antiderivative = 0.70 \[ \int \frac {10800-3258 x^2-e^x x^2+954 x^3-81 x^4}{x^2} \, dx=477\,x^2-{\mathrm {e}}^x-\frac {10800}{x}-3258\,x-27\,x^3 \]
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