Optimal. Leaf size=306 \[ \frac{4 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} \text{EllipticF}\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right ),\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}-\frac{8 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} E\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right )|\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}+\frac{8 b^{5/2} x \left (a+b x^2\right )}{15 a \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{a x+b x^3}}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6} \]
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Rubi [A] time = 0.311964, antiderivative size = 306, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 7, integrand size = 17, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.412, Rules used = {2020, 2025, 2032, 329, 305, 220, 1196} \[ \frac{4 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right )|\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}-\frac{8 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} E\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right )|\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}+\frac{8 b^{5/2} x \left (a+b x^2\right )}{15 a \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{a x+b x^3}}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6} \]
Antiderivative was successfully verified.
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Rule 2020
Rule 2025
Rule 2032
Rule 329
Rule 305
Rule 220
Rule 1196
Rubi steps
\begin{align*} \int \frac{\left (a x+b x^3\right )^{3/2}}{x^7} \, dx &=-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{1}{3} (2 b) \int \frac{\sqrt{a x+b x^3}}{x^4} \, dx\\ &=-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{1}{15} \left (4 b^2\right ) \int \frac{1}{x \sqrt{a x+b x^3}} \, dx\\ &=-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{\left (4 b^3\right ) \int \frac{x}{\sqrt{a x+b x^3}} \, dx}{15 a}\\ &=-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{\left (4 b^3 \sqrt{x} \sqrt{a+b x^2}\right ) \int \frac{\sqrt{x}}{\sqrt{a+b x^2}} \, dx}{15 a \sqrt{a x+b x^3}}\\ &=-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{\left (8 b^3 \sqrt{x} \sqrt{a+b x^2}\right ) \operatorname{Subst}\left (\int \frac{x^2}{\sqrt{a+b x^4}} \, dx,x,\sqrt{x}\right )}{15 a \sqrt{a x+b x^3}}\\ &=-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}+\frac{\left (8 b^{5/2} \sqrt{x} \sqrt{a+b x^2}\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt{a+b x^4}} \, dx,x,\sqrt{x}\right )}{15 \sqrt{a} \sqrt{a x+b x^3}}-\frac{\left (8 b^{5/2} \sqrt{x} \sqrt{a+b x^2}\right ) \operatorname{Subst}\left (\int \frac{1-\frac{\sqrt{b} x^2}{\sqrt{a}}}{\sqrt{a+b x^4}} \, dx,x,\sqrt{x}\right )}{15 \sqrt{a} \sqrt{a x+b x^3}}\\ &=\frac{8 b^{5/2} x \left (a+b x^2\right )}{15 a \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{a x+b x^3}}-\frac{4 b \sqrt{a x+b x^3}}{15 x^3}-\frac{8 b^2 \sqrt{a x+b x^3}}{15 a x}-\frac{2 \left (a x+b x^3\right )^{3/2}}{9 x^6}-\frac{8 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} E\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right )|\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}+\frac{4 b^{9/4} \sqrt{x} \left (\sqrt{a}+\sqrt{b} x\right ) \sqrt{\frac{a+b x^2}{\left (\sqrt{a}+\sqrt{b} x\right )^2}} F\left (2 \tan ^{-1}\left (\frac{\sqrt [4]{b} \sqrt{x}}{\sqrt [4]{a}}\right )|\frac{1}{2}\right )}{15 a^{3/4} \sqrt{a x+b x^3}}\\ \end{align*}
Mathematica [C] time = 0.0158659, size = 54, normalized size = 0.18 \[ -\frac{2 a \sqrt{x \left (a+b x^2\right )} \, _2F_1\left (-\frac{9}{4},-\frac{3}{2};-\frac{5}{4};-\frac{b x^2}{a}\right )}{9 x^5 \sqrt{\frac{b x^2}{a}+1}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.018, size = 223, normalized size = 0.7 \begin{align*} -{\frac{2\,a}{9\,{x}^{5}}\sqrt{b{x}^{3}+ax}}-{\frac{22\,b}{45\,{x}^{3}}\sqrt{b{x}^{3}+ax}}-{\frac{ \left ( 8\,b{x}^{2}+8\,a \right ){b}^{2}}{15\,a}{\frac{1}{\sqrt{x \left ( b{x}^{2}+a \right ) }}}}+{\frac{4\,{b}^{2}}{15\,a}\sqrt{-ab}\sqrt{{b \left ( x+{\frac{1}{b}\sqrt{-ab}} \right ){\frac{1}{\sqrt{-ab}}}}}\sqrt{-2\,{\frac{b}{\sqrt{-ab}} \left ( x-{\frac{\sqrt{-ab}}{b}} \right ) }}\sqrt{-{bx{\frac{1}{\sqrt{-ab}}}}} \left ( -2\,{\frac{\sqrt{-ab}}{b}{\it EllipticE} \left ( \sqrt{{\frac{b}{\sqrt{-ab}} \left ( x+{\frac{\sqrt{-ab}}{b}} \right ) }},1/2\,\sqrt{2} \right ) }+{\frac{1}{b}\sqrt{-ab}{\it EllipticF} \left ( \sqrt{{b \left ( x+{\frac{1}{b}\sqrt{-ab}} \right ){\frac{1}{\sqrt{-ab}}}}},{\frac{\sqrt{2}}{2}} \right ) } \right ){\frac{1}{\sqrt{b{x}^{3}+ax}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b x^{3} + a x\right )}^{\frac{3}{2}}}{x^{7}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{\sqrt{b x^{3} + a x}{\left (b x^{2} + a\right )}}{x^{6}}, x\right ) \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 \frac{\left (x \left (a + b x^{2}\right )\right )^{\frac{3}{2}}}{x^{7}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{{\left (b x^{3} + a x\right )}^{\frac{3}{2}}}{x^{7}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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