Integrand size = 27, antiderivative size = 23 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=x+\log \left (\frac {e^{\frac {4 \left (4+4 x^2\right )}{x}}}{(4+x)^2}\right ) \]
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Time = 0.02 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.65, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.074, Rules used = {1607, 1634} \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=17 x+\frac {16}{x}-2 \log (x+4) \]
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Rule 1607
Rule 1634
Rubi steps \begin{align*} \text {integral}& = \int \frac {-64-16 x+66 x^2+17 x^3}{x^2 (4+x)} \, dx \\ & = \int \left (17-\frac {16}{x^2}-\frac {2}{4+x}\right ) \, dx \\ & = \frac {16}{x}+17 x-2 \log (4+x) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.65 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=\frac {16}{x}+17 x-2 \log (4+x) \]
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Time = 0.46 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.70
method | result | size |
default | \(17 x +\frac {16}{x}-2 \ln \left (4+x \right )\) | \(16\) |
risch | \(17 x +\frac {16}{x}-2 \ln \left (4+x \right )\) | \(16\) |
meijerg | \(\frac {16}{x}-2 \ln \left (1+\frac {x}{4}\right )+17 x\) | \(18\) |
norman | \(\frac {17 x^{2}+16}{x}-2 \ln \left (4+x \right )\) | \(19\) |
parallelrisch | \(-\frac {2 x \ln \left (4+x \right )-17 x^{2}-16}{x}\) | \(20\) |
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Time = 0.25 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.78 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=\frac {17 \, x^{2} - 2 \, x \log \left (x + 4\right ) + 16}{x} \]
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Time = 0.04 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.52 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=17 x - 2 \log {\left (x + 4 \right )} + \frac {16}{x} \]
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Time = 0.17 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.65 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=17 \, x + \frac {16}{x} - 2 \, \log \left (x + 4\right ) \]
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Time = 0.26 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.70 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=17 \, x + \frac {16}{x} - 2 \, \log \left ({\left | x + 4 \right |}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.65 \[ \int \frac {-64-16 x+66 x^2+17 x^3}{4 x^2+x^3} \, dx=17\,x-2\,\ln \left (x+4\right )+\frac {16}{x} \]
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