Integrand size = 48, antiderivative size = 31 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=3+\frac {e^{-13+\frac {-1+x}{4 x}+x^2} (4-x)}{x}+x^2 \]
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\[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=\int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{x^3} \, dx \\ & = \frac {1}{4} \int \left (8 x-\frac {e^{-\frac {51}{4}-\frac {1}{4 x}+x^2} \left (-4+17 x-32 x^3+8 x^4\right )}{x^3}\right ) \, dx \\ & = x^2-\frac {1}{4} \int \frac {e^{-\frac {51}{4}-\frac {1}{4 x}+x^2} \left (-4+17 x-32 x^3+8 x^4\right )}{x^3} \, dx \\ & = x^2-\frac {1}{4} \int \left (-32 e^{-\frac {51}{4}-\frac {1}{4 x}+x^2}-\frac {4 e^{-\frac {51}{4}-\frac {1}{4 x}+x^2}}{x^3}+\frac {17 e^{-\frac {51}{4}-\frac {1}{4 x}+x^2}}{x^2}+8 e^{-\frac {51}{4}-\frac {1}{4 x}+x^2} x\right ) \, dx \\ & = x^2-2 \int e^{-\frac {51}{4}-\frac {1}{4 x}+x^2} x \, dx-\frac {17}{4} \int \frac {e^{-\frac {51}{4}-\frac {1}{4 x}+x^2}}{x^2} \, dx+8 \int e^{-\frac {51}{4}-\frac {1}{4 x}+x^2} \, dx+\int \frac {e^{-\frac {51}{4}-\frac {1}{4 x}+x^2}}{x^3} \, dx \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 39, normalized size of antiderivative = 1.26 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=-\frac {1}{4} e^{-\frac {1}{4 x}+x^2} \left (\frac {4}{e^{51/4}}-\frac {16}{e^{51/4} x}\right )+x^2 \]
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Time = 0.91 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.94
method | result | size |
risch | \(x^{2}-\frac {\left (x -4\right ) {\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}}}{x}\) | \(29\) |
norman | \(\frac {x^{4}+4 \,{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}} x -{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}} x^{2}}{x^{2}}\) | \(49\) |
parallelrisch | \(\frac {4 x^{3}-4 \,{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}} x +16 \,{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}}}{4 x}\) | \(49\) |
parts | \(x^{2}+\frac {4 \,{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}} x -{\mathrm e}^{\frac {4 x^{3}-51 x -1}{4 x}} x^{2}}{x^{2}}\) | \(50\) |
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Time = 0.25 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.94 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=\frac {x^{3} - {\left (x - 4\right )} e^{\left (\frac {4 \, x^{3} - 51 \, x - 1}{4 \, x}\right )}}{x} \]
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Time = 0.08 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.71 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=x^{2} + \frac {\left (4 - x\right ) e^{\frac {x^{3} - \frac {51 x}{4} - \frac {1}{4}}{x}}}{x} \]
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Time = 0.25 (sec) , antiderivative size = 29, normalized size of antiderivative = 0.94 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=x^{2} - \frac {{\left (x e^{\frac {1}{4}} - 4 \, e^{\frac {1}{4}}\right )} e^{\left (x^{2} - \frac {1}{4 \, x} - 13\right )}}{x} \]
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Time = 0.26 (sec) , antiderivative size = 45, normalized size of antiderivative = 1.45 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=\frac {x^{3} - x e^{\left (\frac {4 \, x^{3} - 51 \, x - 1}{4 \, x}\right )} + 4 \, e^{\left (\frac {4 \, x^{3} - 51 \, x - 1}{4 \, x}\right )}}{x} \]
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Time = 9.24 (sec) , antiderivative size = 33, normalized size of antiderivative = 1.06 \[ \int \frac {8 x^4+e^{\frac {-1-51 x+4 x^3}{4 x}} \left (4-17 x+32 x^3-8 x^4\right )}{4 x^3} \, dx=\frac {4\,{\mathrm {e}}^{x^2-\frac {1}{4\,x}-\frac {51}{4}}}{x}-{\mathrm {e}}^{x^2-\frac {1}{4\,x}-\frac {51}{4}}+x^2 \]
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