Optimal. Leaf size=120 \[ \frac{2 x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+A b)}{11 (a+b x)}+\frac{2 a A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 b B x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2}}{13 (a+b x)} \]
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Rubi [A] time = 0.0471709, antiderivative size = 120, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 31, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.065, Rules used = {770, 76} \[ \frac{2 x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+A b)}{11 (a+b x)}+\frac{2 a A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 b B x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2}}{13 (a+b x)} \]
Antiderivative was successfully verified.
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Rule 770
Rule 76
Rubi steps
\begin{align*} \int x^{7/2} (A+B x) \sqrt{a^2+2 a b x+b^2 x^2} \, dx &=\frac{\sqrt{a^2+2 a b x+b^2 x^2} \int x^{7/2} \left (a b+b^2 x\right ) (A+B x) \, dx}{a b+b^2 x}\\ &=\frac{\sqrt{a^2+2 a b x+b^2 x^2} \int \left (a A b x^{7/2}+b (A b+a B) x^{9/2}+b^2 B x^{11/2}\right ) \, dx}{a b+b^2 x}\\ &=\frac{2 a A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 (A b+a B) x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2}}{11 (a+b x)}+\frac{2 b B x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2}}{13 (a+b x)}\\ \end{align*}
Mathematica [A] time = 0.032161, size = 51, normalized size = 0.42 \[ \frac{2 x^{9/2} \sqrt{(a+b x)^2} (13 a (11 A+9 B x)+9 b x (13 A+11 B x))}{1287 (a+b x)} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.004, size = 44, normalized size = 0.4 \begin{align*}{\frac{198\,Bb{x}^{2}+234\,Abx+234\,aBx+286\,aA}{1287\,bx+1287\,a}{x}^{{\frac{9}{2}}}\sqrt{ \left ( bx+a \right ) ^{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.03074, size = 47, normalized size = 0.39 \begin{align*} \frac{2}{143} \,{\left (11 \, b x^{2} + 13 \, a x\right )} B x^{\frac{9}{2}} + \frac{2}{99} \,{\left (9 \, b x^{2} + 11 \, a x\right )} A x^{\frac{7}{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.51883, size = 88, normalized size = 0.73 \begin{align*} \frac{2}{1287} \,{\left (99 \, B b x^{6} + 143 \, A a x^{4} + 117 \,{\left (B a + A b\right )} x^{5}\right )} \sqrt{x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.1628, size = 72, normalized size = 0.6 \begin{align*} \frac{2}{13} \, B b x^{\frac{13}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{11} \, B a x^{\frac{11}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{11} \, A b x^{\frac{11}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{9} \, A a x^{\frac{9}{2}} \mathrm{sgn}\left (b x + a\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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