Optimal. Leaf size=35 \[ -\frac {1}{16 x}-\frac {3}{16 (3 x+2)}-\frac {3 \log (x)}{16}+\frac {3}{16} \log (3 x+2) \]
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Rubi [A] time = 0.01, antiderivative size = 35, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {44} \begin {gather*} -\frac {1}{16 x}-\frac {3}{16 (3 x+2)}-\frac {3 \log (x)}{16}+\frac {3}{16} \log (3 x+2) \end {gather*}
Antiderivative was successfully verified.
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Rule 44
Rubi steps
\begin {align*} \int \frac {1}{x^2 (4+6 x)^2} \, dx &=\int \left (\frac {1}{16 x^2}-\frac {3}{16 x}+\frac {9}{16 (2+3 x)^2}+\frac {9}{16 (2+3 x)}\right ) \, dx\\ &=-\frac {1}{16 x}-\frac {3}{16 (2+3 x)}-\frac {3 \log (x)}{16}+\frac {3}{16} \log (2+3 x)\\ \end {align*}
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Mathematica [A] time = 0.01, size = 31, normalized size = 0.89 \begin {gather*} \frac {1}{16} \left (-\frac {1}{x}-\frac {3}{3 x+2}-3 \log (x)+3 \log (3 x+2)\right ) \end {gather*}
Antiderivative was successfully verified.
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IntegrateAlgebraic [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{x^2 (4+6 x)^2} \, dx \end {gather*}
Verification is not applicable to the result.
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fricas [A] time = 1.19, size = 48, normalized size = 1.37 \begin {gather*} \frac {3 \, {\left (3 \, x^{2} + 2 \, x\right )} \log \left (3 \, x + 2\right ) - 3 \, {\left (3 \, x^{2} + 2 \, x\right )} \log \relax (x) - 6 \, x - 2}{16 \, {\left (3 \, x^{2} + 2 \, x\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.95, size = 40, normalized size = 1.14 \begin {gather*} -\frac {3}{16 \, {\left (3 \, x + 2\right )}} + \frac {3}{32 \, {\left (\frac {2}{3 \, x + 2} - 1\right )}} - \frac {3}{16} \, \log \left ({\left | -\frac {2}{3 \, x + 2} + 1 \right |}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 28, normalized size = 0.80 \begin {gather*} -\frac {3 \ln \relax (x )}{16}+\frac {3 \ln \left (3 x +2\right )}{16}-\frac {1}{16 x}-\frac {3}{16 \left (3 x +2\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.39, size = 31, normalized size = 0.89 \begin {gather*} -\frac {3 \, x + 1}{8 \, {\left (3 \, x^{2} + 2 \, x\right )}} + \frac {3}{16} \, \log \left (3 \, x + 2\right ) - \frac {3}{16} \, \log \relax (x) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.09, size = 34, normalized size = 0.97 \begin {gather*} \frac {3\,\ln \left (\frac {6\,x+4}{x}\right )}{16}-\frac {3}{4\,\left (6\,x+4\right )}-\frac {1}{4\,x\,\left (6\,x+4\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.15, size = 31, normalized size = 0.89 \begin {gather*} \frac {- 3 x - 1}{24 x^{2} + 16 x} - \frac {3 \log {\relax (x )}}{16} + \frac {3 \log {\left (x + \frac {2}{3} \right )}}{16} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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