Integrand size = 26, antiderivative size = 23 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=-2+x+\frac {1}{3} \left (\frac {13-e+e^{2 x}}{x}+x\right ) \]
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Time = 0.03 (sec) , antiderivative size = 30, normalized size of antiderivative = 1.30, number of steps used = 6, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {12, 14, 2228} \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4 x}{3}+\frac {e^{2 x}}{3 x}+\frac {13-e}{3 x} \]
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Rule 12
Rule 14
Rule 2228
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{x^2} \, dx \\ & = \frac {1}{3} \int \left (\frac {e^{2 x} (-1+2 x)}{x^2}+\frac {-13+e+4 x^2}{x^2}\right ) \, dx \\ & = \frac {1}{3} \int \frac {e^{2 x} (-1+2 x)}{x^2} \, dx+\frac {1}{3} \int \frac {-13+e+4 x^2}{x^2} \, dx \\ & = \frac {e^{2 x}}{3 x}+\frac {1}{3} \int \left (4+\frac {-13+e}{x^2}\right ) \, dx \\ & = \frac {13-e}{3 x}+\frac {e^{2 x}}{3 x}+\frac {4 x}{3} \\ \end{align*}
Time = 0.07 (sec) , antiderivative size = 22, normalized size of antiderivative = 0.96 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {13-e+e^{2 x}+4 x^2}{3 x} \]
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Time = 0.07 (sec) , antiderivative size = 21, normalized size of antiderivative = 0.91
method | result | size |
parallelrisch | \(-\frac {-4 x^{2}-13-{\mathrm e}^{2 x}+{\mathrm e}}{3 x}\) | \(21\) |
norman | \(\frac {\frac {4 x^{2}}{3}+\frac {{\mathrm e}^{2 x}}{3}-\frac {{\mathrm e}}{3}+\frac {13}{3}}{x}\) | \(22\) |
parts | \(\frac {4 x}{3}-\frac {{\mathrm e}-13}{3 x}+\frac {{\mathrm e}^{2 x}}{3 x}\) | \(23\) |
default | \(\frac {4 x}{3}-\frac {{\mathrm e}}{3 x}+\frac {13}{3 x}+\frac {{\mathrm e}^{2 x}}{3 x}\) | \(26\) |
risch | \(\frac {4 x}{3}-\frac {{\mathrm e}}{3 x}+\frac {13}{3 x}+\frac {{\mathrm e}^{2 x}}{3 x}\) | \(26\) |
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Time = 0.24 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4 \, x^{2} - e + e^{\left (2 \, x\right )} + 13}{3 \, x} \]
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Time = 0.07 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4 x}{3} + \frac {e^{2 x}}{3 x} + \frac {13 - e}{3 x} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3.
Time = 0.21 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.26 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4}{3} \, x - \frac {e}{3 \, x} + \frac {13}{3 \, x} + \frac {2}{3} \, {\rm Ei}\left (2 \, x\right ) - \frac {2}{3} \, \Gamma \left (-1, -2 \, x\right ) \]
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Time = 0.28 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4 \, x^{2} - e + e^{\left (2 \, x\right )} + 13}{3 \, x} \]
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Time = 0.07 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.87 \[ \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx=\frac {4\,x}{3}+\frac {\frac {{\mathrm {e}}^{2\,x}}{3}-\frac {\mathrm {e}}{3}+\frac {13}{3}}{x} \]
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