Optimal. Leaf size=44 \[ \frac{4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}}-\frac{2 (a+b x)^{3/2}}{5 a x^{5/2}} \]
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Rubi [A] time = 0.0053334, antiderivative size = 44, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 15, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.133, Rules used = {45, 37} \[ \frac{4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}}-\frac{2 (a+b x)^{3/2}}{5 a x^{5/2}} \]
Antiderivative was successfully verified.
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Rule 45
Rule 37
Rubi steps
\begin{align*} \int \frac{\sqrt{a+b x}}{x^{7/2}} \, dx &=-\frac{2 (a+b x)^{3/2}}{5 a x^{5/2}}-\frac{(2 b) \int \frac{\sqrt{a+b x}}{x^{5/2}} \, dx}{5 a}\\ &=-\frac{2 (a+b x)^{3/2}}{5 a x^{5/2}}+\frac{4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}}\\ \end{align*}
Mathematica [A] time = 0.0086478, size = 29, normalized size = 0.66 \[ -\frac{2 (3 a-2 b x) (a+b x)^{3/2}}{15 a^2 x^{5/2}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.003, size = 24, normalized size = 0.6 \begin{align*} -{\frac{-4\,bx+6\,a}{15\,{a}^{2}} \left ( bx+a \right ) ^{{\frac{3}{2}}}{x}^{-{\frac{5}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.09814, size = 42, normalized size = 0.95 \begin{align*} \frac{2 \,{\left (\frac{5 \,{\left (b x + a\right )}^{\frac{3}{2}} b}{x^{\frac{3}{2}}} - \frac{3 \,{\left (b x + a\right )}^{\frac{5}{2}}}{x^{\frac{5}{2}}}\right )}}{15 \, a^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.57641, size = 84, normalized size = 1.91 \begin{align*} \frac{2 \,{\left (2 \, b^{2} x^{2} - a b x - 3 \, a^{2}\right )} \sqrt{b x + a}}{15 \, a^{2} x^{\frac{5}{2}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 20.8099, size = 65, normalized size = 1.48 \begin{align*} - \frac{2 \sqrt{b} \sqrt{\frac{a}{b x} + 1}}{5 x^{2}} - \frac{2 b^{\frac{3}{2}} \sqrt{\frac{a}{b x} + 1}}{15 a x} + \frac{4 b^{\frac{5}{2}} \sqrt{\frac{a}{b x} + 1}}{15 a^{2}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.30399, size = 68, normalized size = 1.55 \begin{align*} -\frac{{\left (b x + a\right )}^{\frac{3}{2}} b{\left (\frac{2 \,{\left (b x + a\right )}}{a^{3} b^{4}} - \frac{5}{a^{2} b^{4}}\right )}}{480 \,{\left ({\left (b x + a\right )} b - a b\right )}^{\frac{5}{2}}{\left | b \right |}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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