Optimal. Leaf size=255 \[ \frac{b^5 x^{19} \sqrt{a^2+2 a b x^2+b^2 x^4}}{19 \left (a+b x^2\right )}+\frac{5 a b^4 x^{17} \sqrt{a^2+2 a b x^2+b^2 x^4}}{17 \left (a+b x^2\right )}+\frac{2 a^2 b^3 x^{15} \sqrt{a^2+2 a b x^2+b^2 x^4}}{3 \left (a+b x^2\right )}+\frac{10 a^3 b^2 x^{13} \sqrt{a^2+2 a b x^2+b^2 x^4}}{13 \left (a+b x^2\right )}+\frac{5 a^4 b x^{11} \sqrt{a^2+2 a b x^2+b^2 x^4}}{11 \left (a+b x^2\right )}+\frac{a^5 x^9 \sqrt{a^2+2 a b x^2+b^2 x^4}}{9 \left (a+b x^2\right )} \]
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Rubi [A] time = 0.0608189, antiderivative size = 255, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 26, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.077, Rules used = {1112, 270} \[ \frac{b^5 x^{19} \sqrt{a^2+2 a b x^2+b^2 x^4}}{19 \left (a+b x^2\right )}+\frac{5 a b^4 x^{17} \sqrt{a^2+2 a b x^2+b^2 x^4}}{17 \left (a+b x^2\right )}+\frac{2 a^2 b^3 x^{15} \sqrt{a^2+2 a b x^2+b^2 x^4}}{3 \left (a+b x^2\right )}+\frac{10 a^3 b^2 x^{13} \sqrt{a^2+2 a b x^2+b^2 x^4}}{13 \left (a+b x^2\right )}+\frac{5 a^4 b x^{11} \sqrt{a^2+2 a b x^2+b^2 x^4}}{11 \left (a+b x^2\right )}+\frac{a^5 x^9 \sqrt{a^2+2 a b x^2+b^2 x^4}}{9 \left (a+b x^2\right )} \]
Antiderivative was successfully verified.
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Rule 1112
Rule 270
Rubi steps
\begin{align*} \int x^8 \left (a^2+2 a b x^2+b^2 x^4\right )^{5/2} \, dx &=\frac{\sqrt{a^2+2 a b x^2+b^2 x^4} \int x^8 \left (a b+b^2 x^2\right )^5 \, dx}{b^4 \left (a b+b^2 x^2\right )}\\ &=\frac{\sqrt{a^2+2 a b x^2+b^2 x^4} \int \left (a^5 b^5 x^8+5 a^4 b^6 x^{10}+10 a^3 b^7 x^{12}+10 a^2 b^8 x^{14}+5 a b^9 x^{16}+b^{10} x^{18}\right ) \, dx}{b^4 \left (a b+b^2 x^2\right )}\\ &=\frac{a^5 x^9 \sqrt{a^2+2 a b x^2+b^2 x^4}}{9 \left (a+b x^2\right )}+\frac{5 a^4 b x^{11} \sqrt{a^2+2 a b x^2+b^2 x^4}}{11 \left (a+b x^2\right )}+\frac{10 a^3 b^2 x^{13} \sqrt{a^2+2 a b x^2+b^2 x^4}}{13 \left (a+b x^2\right )}+\frac{2 a^2 b^3 x^{15} \sqrt{a^2+2 a b x^2+b^2 x^4}}{3 \left (a+b x^2\right )}+\frac{5 a b^4 x^{17} \sqrt{a^2+2 a b x^2+b^2 x^4}}{17 \left (a+b x^2\right )}+\frac{b^5 x^{19} \sqrt{a^2+2 a b x^2+b^2 x^4}}{19 \left (a+b x^2\right )}\\ \end{align*}
Mathematica [A] time = 0.0215853, size = 83, normalized size = 0.33 \[ \frac{x^9 \sqrt{\left (a+b x^2\right )^2} \left (277134 a^2 b^3 x^6+319770 a^3 b^2 x^4+188955 a^4 b x^2+46189 a^5+122265 a b^4 x^8+21879 b^5 x^{10}\right )}{415701 \left (a+b x^2\right )} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.161, size = 80, normalized size = 0.3 \begin{align*}{\frac{{x}^{9} \left ( 21879\,{b}^{5}{x}^{10}+122265\,a{b}^{4}{x}^{8}+277134\,{a}^{2}{b}^{3}{x}^{6}+319770\,{b}^{2}{a}^{3}{x}^{4}+188955\,{a}^{4}b{x}^{2}+46189\,{a}^{5} \right ) }{415701\, \left ( b{x}^{2}+a \right ) ^{5}} \left ( \left ( b{x}^{2}+a \right ) ^{2} \right ) ^{{\frac{5}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.00446, size = 77, normalized size = 0.3 \begin{align*} \frac{1}{19} \, b^{5} x^{19} + \frac{5}{17} \, a b^{4} x^{17} + \frac{2}{3} \, a^{2} b^{3} x^{15} + \frac{10}{13} \, a^{3} b^{2} x^{13} + \frac{5}{11} \, a^{4} b x^{11} + \frac{1}{9} \, a^{5} x^{9} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.25025, size = 142, normalized size = 0.56 \begin{align*} \frac{1}{19} \, b^{5} x^{19} + \frac{5}{17} \, a b^{4} x^{17} + \frac{2}{3} \, a^{2} b^{3} x^{15} + \frac{10}{13} \, a^{3} b^{2} x^{13} + \frac{5}{11} \, a^{4} b x^{11} + \frac{1}{9} \, a^{5} x^{9} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int x^{8} \left (\left (a + b x^{2}\right )^{2}\right )^{\frac{5}{2}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.10924, size = 142, normalized size = 0.56 \begin{align*} \frac{1}{19} \, b^{5} x^{19} \mathrm{sgn}\left (b x^{2} + a\right ) + \frac{5}{17} \, a b^{4} x^{17} \mathrm{sgn}\left (b x^{2} + a\right ) + \frac{2}{3} \, a^{2} b^{3} x^{15} \mathrm{sgn}\left (b x^{2} + a\right ) + \frac{10}{13} \, a^{3} b^{2} x^{13} \mathrm{sgn}\left (b x^{2} + a\right ) + \frac{5}{11} \, a^{4} b x^{11} \mathrm{sgn}\left (b x^{2} + a\right ) + \frac{1}{9} \, a^{5} x^{9} \mathrm{sgn}\left (b x^{2} + a\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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