Optimal. Leaf size=66 \[ \frac {b \log \left (a+b x^3\right )}{a^4}-\frac {3 b \log (x)}{a^4}-\frac {2 b}{3 a^3 \left (a+b x^3\right )}-\frac {1}{3 a^3 x^3}-\frac {b}{6 a^2 \left (a+b x^3\right )^2} \]
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Rubi [A] time = 0.05, antiderivative size = 66, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {266, 44} \[ -\frac {2 b}{3 a^3 \left (a+b x^3\right )}-\frac {b}{6 a^2 \left (a+b x^3\right )^2}+\frac {b \log \left (a+b x^3\right )}{a^4}-\frac {3 b \log (x)}{a^4}-\frac {1}{3 a^3 x^3} \]
Antiderivative was successfully verified.
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Rule 44
Rule 266
Rubi steps
\begin {align*} \int \frac {1}{x^4 \left (a+b x^3\right )^3} \, dx &=\frac {1}{3} \operatorname {Subst}\left (\int \frac {1}{x^2 (a+b x)^3} \, dx,x,x^3\right )\\ &=\frac {1}{3} \operatorname {Subst}\left (\int \left (\frac {1}{a^3 x^2}-\frac {3 b}{a^4 x}+\frac {b^2}{a^2 (a+b x)^3}+\frac {2 b^2}{a^3 (a+b x)^2}+\frac {3 b^2}{a^4 (a+b x)}\right ) \, dx,x,x^3\right )\\ &=-\frac {1}{3 a^3 x^3}-\frac {b}{6 a^2 \left (a+b x^3\right )^2}-\frac {2 b}{3 a^3 \left (a+b x^3\right )}-\frac {3 b \log (x)}{a^4}+\frac {b \log \left (a+b x^3\right )}{a^4}\\ \end {align*}
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Mathematica [A] time = 0.06, size = 59, normalized size = 0.89 \[ -\frac {\frac {a \left (2 a^2+9 a b x^3+6 b^2 x^6\right )}{x^3 \left (a+b x^3\right )^2}-6 b \log \left (a+b x^3\right )+18 b \log (x)}{6 a^4} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.57, size = 119, normalized size = 1.80 \[ -\frac {6 \, a b^{2} x^{6} + 9 \, a^{2} b x^{3} + 2 \, a^{3} - 6 \, {\left (b^{3} x^{9} + 2 \, a b^{2} x^{6} + a^{2} b x^{3}\right )} \log \left (b x^{3} + a\right ) + 18 \, {\left (b^{3} x^{9} + 2 \, a b^{2} x^{6} + a^{2} b x^{3}\right )} \log \relax (x)}{6 \, {\left (a^{4} b^{2} x^{9} + 2 \, a^{5} b x^{6} + a^{6} x^{3}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.19, size = 80, normalized size = 1.21 \[ \frac {b \log \left ({\left | b x^{3} + a \right |}\right )}{a^{4}} - \frac {3 \, b \log \left ({\left | x \right |}\right )}{a^{4}} - \frac {9 \, b^{3} x^{6} + 22 \, a b^{2} x^{3} + 14 \, a^{2} b}{6 \, {\left (b x^{3} + a\right )}^{2} a^{4}} + \frac {3 \, b x^{3} - a}{3 \, a^{4} x^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 61, normalized size = 0.92 \[ -\frac {b}{6 \left (b \,x^{3}+a \right )^{2} a^{2}}-\frac {2 b}{3 \left (b \,x^{3}+a \right ) a^{3}}-\frac {3 b \ln \relax (x )}{a^{4}}+\frac {b \ln \left (b \,x^{3}+a \right )}{a^{4}}-\frac {1}{3 a^{3} x^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.36, size = 76, normalized size = 1.15 \[ -\frac {6 \, b^{2} x^{6} + 9 \, a b x^{3} + 2 \, a^{2}}{6 \, {\left (a^{3} b^{2} x^{9} + 2 \, a^{4} b x^{6} + a^{5} x^{3}\right )}} + \frac {b \log \left (b x^{3} + a\right )}{a^{4}} - \frac {b \log \left (x^{3}\right )}{a^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.09, size = 73, normalized size = 1.11 \[ \frac {b\,\ln \left (b\,x^3+a\right )}{a^4}-\frac {\frac {1}{3\,a}+\frac {3\,b\,x^3}{2\,a^2}+\frac {b^2\,x^6}{a^3}}{a^2\,x^3+2\,a\,b\,x^6+b^2\,x^9}-\frac {3\,b\,\ln \relax (x)}{a^4} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.68, size = 76, normalized size = 1.15 \[ \frac {- 2 a^{2} - 9 a b x^{3} - 6 b^{2} x^{6}}{6 a^{5} x^{3} + 12 a^{4} b x^{6} + 6 a^{3} b^{2} x^{9}} - \frac {3 b \log {\relax (x )}}{a^{4}} + \frac {b \log {\left (\frac {a}{b} + x^{3} \right )}}{a^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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