Optimal. Leaf size=23 \[ \frac {3}{2 x+1}-\frac {3}{(2 x+1)^2}+\log (x+1) \]
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Rubi [A] time = 0.03, antiderivative size = 23, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.050, Rules used = {1620} \[ \frac {3}{2 x+1}-\frac {3}{(2 x+1)^2}+\log (x+1) \]
Antiderivative was successfully verified.
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Rule 1620
Rubi steps
\begin {align*} \int \frac {7+8 x^3}{(1+x) (1+2 x)^3} \, dx &=\int \left (\frac {1}{1+x}+\frac {12}{(1+2 x)^3}-\frac {6}{(1+2 x)^2}\right ) \, dx\\ &=-\frac {3}{(1+2 x)^2}+\frac {3}{1+2 x}+\log (1+x)\\ \end {align*}
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Mathematica [A] time = 0.01, size = 24, normalized size = 1.04 \[ \frac {6 x+(2 x+1)^2 \log (x+1)}{(2 x+1)^2} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.39, size = 32, normalized size = 1.39 \[ \frac {{\left (4 \, x^{2} + 4 \, x + 1\right )} \log \left (x + 1\right ) + 6 \, x}{4 \, x^{2} + 4 \, x + 1} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.01, size = 16, normalized size = 0.70 \[ \frac {6 \, x}{{\left (2 \, x + 1\right )}^{2}} + \log \left ({\left | x + 1 \right |}\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 24, normalized size = 1.04 \[ \ln \left (x +1\right )-\frac {3}{\left (2 x +1\right )^{2}}+\frac {3}{2 x +1} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.60, size = 20, normalized size = 0.87 \[ \frac {6 \, x}{4 \, x^{2} + 4 \, x + 1} + \log \left (x + 1\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.09, size = 15, normalized size = 0.65 \[ \ln \left (x+1\right )+\frac {6\,x}{{\left (2\,x+1\right )}^2} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.11, size = 17, normalized size = 0.74 \[ \frac {6 x}{4 x^{2} + 4 x + 1} + \log {\left (x + 1 \right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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