Optimal. Leaf size=70 \[ \frac {a^2 \log \left (a+b x^3\right )}{3 b^2 (b c-a d)}-\frac {c^2 \log \left (c+d x^3\right )}{3 d^2 (b c-a d)}+\frac {x^3}{3 b d} \]
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Rubi [A] time = 0.07, antiderivative size = 70, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {446, 72} \[ \frac {a^2 \log \left (a+b x^3\right )}{3 b^2 (b c-a d)}-\frac {c^2 \log \left (c+d x^3\right )}{3 d^2 (b c-a d)}+\frac {x^3}{3 b d} \]
Antiderivative was successfully verified.
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Rule 72
Rule 446
Rubi steps
\begin {align*} \int \frac {x^8}{\left (a+b x^3\right ) \left (c+d x^3\right )} \, dx &=\frac {1}{3} \operatorname {Subst}\left (\int \frac {x^2}{(a+b x) (c+d x)} \, dx,x,x^3\right )\\ &=\frac {1}{3} \operatorname {Subst}\left (\int \left (\frac {1}{b d}+\frac {a^2}{b (b c-a d) (a+b x)}+\frac {c^2}{d (-b c+a d) (c+d x)}\right ) \, dx,x,x^3\right )\\ &=\frac {x^3}{3 b d}+\frac {a^2 \log \left (a+b x^3\right )}{3 b^2 (b c-a d)}-\frac {c^2 \log \left (c+d x^3\right )}{3 d^2 (b c-a d)}\\ \end {align*}
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Mathematica [A] time = 0.07, size = 66, normalized size = 0.94 \[ \frac {a^2 d^2 \log \left (a+b x^3\right )-b \left (d x^3 (a d-b c)+b c^2 \log \left (c+d x^3\right )\right )}{3 b^2 d^2 (b c-a d)} \]
Antiderivative was successfully verified.
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fricas [A] time = 1.05, size = 72, normalized size = 1.03 \[ \frac {a^{2} d^{2} \log \left (b x^{3} + a\right ) - b^{2} c^{2} \log \left (d x^{3} + c\right ) + {\left (b^{2} c d - a b d^{2}\right )} x^{3}}{3 \, {\left (b^{3} c d^{2} - a b^{2} d^{3}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.18, size = 70, normalized size = 1.00 \[ \frac {a^{2} \log \left ({\left | b x^{3} + a \right |}\right )}{3 \, {\left (b^{3} c - a b^{2} d\right )}} - \frac {c^{2} \log \left ({\left | d x^{3} + c \right |}\right )}{3 \, {\left (b c d^{2} - a d^{3}\right )}} + \frac {x^{3}}{3 \, b d} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.05, size = 65, normalized size = 0.93 \[ -\frac {a^{2} \ln \left (b \,x^{3}+a \right )}{3 \left (a d -b c \right ) b^{2}}+\frac {x^{3}}{3 b d}+\frac {c^{2} \ln \left (d \,x^{3}+c \right )}{3 \left (a d -b c \right ) d^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.59, size = 68, normalized size = 0.97 \[ \frac {a^{2} \log \left (b x^{3} + a\right )}{3 \, {\left (b^{3} c - a b^{2} d\right )}} - \frac {c^{2} \log \left (d x^{3} + c\right )}{3 \, {\left (b c d^{2} - a d^{3}\right )}} + \frac {x^{3}}{3 \, b d} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 2.84, size = 68, normalized size = 0.97 \[ \frac {a^2\,\ln \left (b\,x^3+a\right )}{3\,b^3\,c-3\,a\,b^2\,d}+\frac {c^2\,\ln \left (d\,x^3+c\right )}{3\,a\,d^3-3\,b\,c\,d^2}+\frac {x^3}{3\,b\,d} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Timed out} \]
Verification of antiderivative is not currently implemented for this CAS.
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