Integrand size = 38, antiderivative size = 28 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=5-4 x^2+25 e^{4-\frac {6}{x}} \left (4+\frac {5}{x}\right ) (5+x) \]
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Time = 0.14 (sec) , antiderivative size = 43, normalized size of antiderivative = 1.54, number of steps used = 10, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.158, Rules used = {14, 6874, 2237, 2241, 2243, 2240} \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=-4 x^2+100 e^{4-\frac {6}{x}} x+625 e^{4-\frac {6}{x}}+\frac {625 e^{4-\frac {6}{x}}}{x} \]
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Rule 14
Rule 2237
Rule 2240
Rule 2241
Rule 2243
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (-8 x+\frac {25 e^{4-\frac {6}{x}} \left (150+125 x+24 x^2+4 x^3\right )}{x^3}\right ) \, dx \\ & = -4 x^2+25 \int \frac {e^{4-\frac {6}{x}} \left (150+125 x+24 x^2+4 x^3\right )}{x^3} \, dx \\ & = -4 x^2+25 \int \left (4 e^{4-\frac {6}{x}}+\frac {150 e^{4-\frac {6}{x}}}{x^3}+\frac {125 e^{4-\frac {6}{x}}}{x^2}+\frac {24 e^{4-\frac {6}{x}}}{x}\right ) \, dx \\ & = -4 x^2+100 \int e^{4-\frac {6}{x}} \, dx+600 \int \frac {e^{4-\frac {6}{x}}}{x} \, dx+3125 \int \frac {e^{4-\frac {6}{x}}}{x^2} \, dx+3750 \int \frac {e^{4-\frac {6}{x}}}{x^3} \, dx \\ & = \frac {3125}{6} e^{4-\frac {6}{x}}+\frac {625 e^{4-\frac {6}{x}}}{x}+100 e^{4-\frac {6}{x}} x-4 x^2-600 e^4 \text {Ei}\left (-\frac {6}{x}\right )-600 \int \frac {e^{4-\frac {6}{x}}}{x} \, dx+625 \int \frac {e^{4-\frac {6}{x}}}{x^2} \, dx \\ & = 625 e^{4-\frac {6}{x}}+\frac {625 e^{4-\frac {6}{x}}}{x}+100 e^{4-\frac {6}{x}} x-4 x^2 \\ \end{align*}
Time = 0.11 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.25 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=-4 x^2+25 e^{-6/x} \left (25 e^4+\frac {25 e^4}{x}+4 e^4 x\right ) \]
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Time = 0.60 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.18
method | result | size |
risch | \(-4 x^{2}+\frac {25 \left (4 x^{2}+25 x +25\right ) {\mathrm e}^{\frac {4 x -6}{x}}}{x}\) | \(33\) |
derivativedivides | \(\frac {3125 \,{\mathrm e}^{-\frac {6}{x}+4}}{3}-4 x^{2}-\frac {625 \,{\mathrm e}^{-\frac {6}{x}+4} \left (-\frac {3}{x}+2\right )}{3}+100 \,{\mathrm e}^{-\frac {6}{x}+4} x\) | \(51\) |
default | \(\frac {3125 \,{\mathrm e}^{-\frac {6}{x}+4}}{3}-4 x^{2}-\frac {625 \,{\mathrm e}^{-\frac {6}{x}+4} \left (-\frac {3}{x}+2\right )}{3}+100 \,{\mathrm e}^{-\frac {6}{x}+4} x\) | \(51\) |
parts | \(\frac {3125 \,{\mathrm e}^{-\frac {6}{x}+4}}{3}-4 x^{2}-\frac {625 \,{\mathrm e}^{-\frac {6}{x}+4} \left (-\frac {3}{x}+2\right )}{3}+100 \,{\mathrm e}^{-\frac {6}{x}+4} x\) | \(51\) |
parallelrisch | \(-\frac {-100 \,{\mathrm e}^{\frac {4 x -6}{x}} x^{2}+4 x^{3}-625 \,{\mathrm e}^{\frac {4 x -6}{x}} x -625 \,{\mathrm e}^{\frac {4 x -6}{x}}}{x}\) | \(58\) |
norman | \(\frac {-4 x^{4}+625 \,{\mathrm e}^{\frac {4 x -6}{x}} x +625 \,{\mathrm e}^{\frac {4 x -6}{x}} x^{2}+100 \,{\mathrm e}^{\frac {4 x -6}{x}} x^{3}}{x^{2}}\) | \(60\) |
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none
Time = 0.29 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.21 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=-\frac {4 \, x^{3} - 25 \, {\left (4 \, x^{2} + 25 \, x + 25\right )} e^{\left (\frac {2 \, {\left (2 \, x - 3\right )}}{x}\right )}}{x} \]
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Time = 0.06 (sec) , antiderivative size = 24, normalized size of antiderivative = 0.86 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=- 4 x^{2} + \frac {\left (100 x^{2} + 625 x + 625\right ) e^{\frac {2 \cdot \left (2 x - 3\right )}{x}}}{x} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 48, normalized size of antiderivative = 1.71 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=-4 \, x^{2} - 600 \, {\rm Ei}\left (-\frac {6}{x}\right ) e^{4} + \frac {625}{6} \, e^{4} \Gamma \left (2, \frac {6}{x}\right ) + 600 \, e^{4} \Gamma \left (-1, \frac {6}{x}\right ) + \frac {3125}{6} \, e^{\left (-\frac {6}{x} + 4\right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 109 vs. \(2 (27) = 54\).
Time = 0.31 (sec) , antiderivative size = 109, normalized size of antiderivative = 3.89 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=-\frac {\frac {625 \, {\left (2 \, x - 3\right )}^{3} e^{\left (\frac {2 \, {\left (2 \, x - 3\right )}}{x}\right )}}{x^{3}} - \frac {5625 \, {\left (2 \, x - 3\right )}^{2} e^{\left (\frac {2 \, {\left (2 \, x - 3\right )}}{x}\right )}}{x^{2}} + \frac {15900 \, {\left (2 \, x - 3\right )} e^{\left (\frac {2 \, {\left (2 \, x - 3\right )}}{x}\right )}}{x} - 14300 \, e^{\left (\frac {2 \, {\left (2 \, x - 3\right )}}{x}\right )} + 108}{3 \, {\left (\frac {{\left (2 \, x - 3\right )}^{2}}{x^{2}} - \frac {4 \, {\left (2 \, x - 3\right )}}{x} + 4\right )}} \]
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Time = 12.14 (sec) , antiderivative size = 40, normalized size of antiderivative = 1.43 \[ \int \frac {-8 x^4+e^{\frac {2 (-3+2 x)}{x}} \left (3750+3125 x+600 x^2+100 x^3\right )}{x^3} \, dx=625\,{\mathrm {e}}^{4-\frac {6}{x}}+\frac {625\,{\mathrm {e}}^{4-\frac {6}{x}}}{x}+100\,x\,{\mathrm {e}}^{4-\frac {6}{x}}-4\,x^2 \]
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