Optimal. Leaf size=94 \[ -\frac {6 a^5 \log (x)}{b^7}+\frac {6 a^5 \log (a x+b)}{b^7}-\frac {a^5}{b^6 (a x+b)}-\frac {5 a^4}{b^6 x}+\frac {2 a^3}{b^5 x^2}-\frac {a^2}{b^4 x^3}+\frac {a}{2 b^3 x^4}-\frac {1}{5 b^2 x^5} \]
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Rubi [A] time = 0.05, antiderivative size = 94, 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 = {263, 44} \[ \frac {2 a^3}{b^5 x^2}-\frac {a^2}{b^4 x^3}-\frac {a^5}{b^6 (a x+b)}-\frac {5 a^4}{b^6 x}-\frac {6 a^5 \log (x)}{b^7}+\frac {6 a^5 \log (a x+b)}{b^7}+\frac {a}{2 b^3 x^4}-\frac {1}{5 b^2 x^5} \]
Antiderivative was successfully verified.
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Rule 44
Rule 263
Rubi steps
\begin {align*} \int \frac {1}{\left (a+\frac {b}{x}\right )^2 x^8} \, dx &=\int \frac {1}{x^6 (b+a x)^2} \, dx\\ &=\int \left (\frac {1}{b^2 x^6}-\frac {2 a}{b^3 x^5}+\frac {3 a^2}{b^4 x^4}-\frac {4 a^3}{b^5 x^3}+\frac {5 a^4}{b^6 x^2}-\frac {6 a^5}{b^7 x}+\frac {a^6}{b^6 (b+a x)^2}+\frac {6 a^6}{b^7 (b+a x)}\right ) \, dx\\ &=-\frac {1}{5 b^2 x^5}+\frac {a}{2 b^3 x^4}-\frac {a^2}{b^4 x^3}+\frac {2 a^3}{b^5 x^2}-\frac {5 a^4}{b^6 x}-\frac {a^5}{b^6 (b+a x)}-\frac {6 a^5 \log (x)}{b^7}+\frac {6 a^5 \log (b+a x)}{b^7}\\ \end {align*}
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Mathematica [A] time = 0.07, size = 90, normalized size = 0.96 \[ -\frac {-60 a^5 \log (a x+b)+60 a^5 \log (x)+\frac {b \left (60 a^5 x^5+30 a^4 b x^4-10 a^3 b^2 x^3+5 a^2 b^3 x^2-3 a b^4 x+2 b^5\right )}{x^5 (a x+b)}}{10 b^7} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.98, size = 119, normalized size = 1.27 \[ -\frac {60 \, a^{5} b x^{5} + 30 \, a^{4} b^{2} x^{4} - 10 \, a^{3} b^{3} x^{3} + 5 \, a^{2} b^{4} x^{2} - 3 \, a b^{5} x + 2 \, b^{6} - 60 \, {\left (a^{6} x^{6} + a^{5} b x^{5}\right )} \log \left (a x + b\right ) + 60 \, {\left (a^{6} x^{6} + a^{5} b x^{5}\right )} \log \relax (x)}{10 \, {\left (a b^{7} x^{6} + b^{8} x^{5}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.15, size = 97, normalized size = 1.03 \[ \frac {6 \, a^{5} \log \left ({\left | a x + b \right |}\right )}{b^{7}} - \frac {6 \, a^{5} \log \left ({\left | x \right |}\right )}{b^{7}} - \frac {60 \, a^{5} b x^{5} + 30 \, a^{4} b^{2} x^{4} - 10 \, a^{3} b^{3} x^{3} + 5 \, a^{2} b^{4} x^{2} - 3 \, a b^{5} x + 2 \, b^{6}}{10 \, {\left (a x + b\right )} b^{7} x^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 91, normalized size = 0.97 \[ -\frac {a^{5}}{\left (a x +b \right ) b^{6}}-\frac {6 a^{5} \ln \relax (x )}{b^{7}}+\frac {6 a^{5} \ln \left (a x +b \right )}{b^{7}}-\frac {5 a^{4}}{b^{6} x}+\frac {2 a^{3}}{b^{5} x^{2}}-\frac {a^{2}}{b^{4} x^{3}}+\frac {a}{2 b^{3} x^{4}}-\frac {1}{5 b^{2} x^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.09, size = 97, normalized size = 1.03 \[ -\frac {60 \, a^{5} x^{5} + 30 \, a^{4} b x^{4} - 10 \, a^{3} b^{2} x^{3} + 5 \, a^{2} b^{3} x^{2} - 3 \, a b^{4} x + 2 \, b^{5}}{10 \, {\left (a b^{6} x^{6} + b^{7} x^{5}\right )}} + \frac {6 \, a^{5} \log \left (a x + b\right )}{b^{7}} - \frac {6 \, a^{5} \log \relax (x)}{b^{7}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.10, size = 91, normalized size = 0.97 \[ \frac {12\,a^5\,\mathrm {atanh}\left (\frac {2\,a\,x}{b}+1\right )}{b^7}-\frac {\frac {1}{5\,b}+\frac {a^2\,x^2}{2\,b^3}-\frac {a^3\,x^3}{b^4}+\frac {3\,a^4\,x^4}{b^5}+\frac {6\,a^5\,x^5}{b^6}-\frac {3\,a\,x}{10\,b^2}}{a\,x^6+b\,x^5} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 0.43, size = 92, normalized size = 0.98 \[ \frac {6 a^{5} \left (- \log {\relax (x )} + \log {\left (x + \frac {b}{a} \right )}\right )}{b^{7}} + \frac {- 60 a^{5} x^{5} - 30 a^{4} b x^{4} + 10 a^{3} b^{2} x^{3} - 5 a^{2} b^{3} x^{2} + 3 a b^{4} x - 2 b^{5}}{10 a b^{6} x^{6} + 10 b^{7} x^{5}} \]
Verification of antiderivative is not currently implemented for this CAS.
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