Optimal. Leaf size=80 \[ \frac {2 b^3 \sqrt {b x+2}}{35 \sqrt {x}}-\frac {2 b^2 \sqrt {b x+2}}{35 x^{3/2}}+\frac {3 b \sqrt {b x+2}}{35 x^{5/2}}-\frac {\sqrt {b x+2}}{7 x^{7/2}} \]
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Rubi [A] time = 0.01, antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {45, 37} \[ -\frac {2 b^2 \sqrt {b x+2}}{35 x^{3/2}}+\frac {2 b^3 \sqrt {b x+2}}{35 \sqrt {x}}+\frac {3 b \sqrt {b x+2}}{35 x^{5/2}}-\frac {\sqrt {b x+2}}{7 x^{7/2}} \]
Antiderivative was successfully verified.
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Rule 37
Rule 45
Rubi steps
\begin {align*} \int \frac {1}{x^{9/2} \sqrt {2+b x}} \, dx &=-\frac {\sqrt {2+b x}}{7 x^{7/2}}-\frac {1}{7} (3 b) \int \frac {1}{x^{7/2} \sqrt {2+b x}} \, dx\\ &=-\frac {\sqrt {2+b x}}{7 x^{7/2}}+\frac {3 b \sqrt {2+b x}}{35 x^{5/2}}+\frac {1}{35} \left (6 b^2\right ) \int \frac {1}{x^{5/2} \sqrt {2+b x}} \, dx\\ &=-\frac {\sqrt {2+b x}}{7 x^{7/2}}+\frac {3 b \sqrt {2+b x}}{35 x^{5/2}}-\frac {2 b^2 \sqrt {2+b x}}{35 x^{3/2}}-\frac {1}{35} \left (2 b^3\right ) \int \frac {1}{x^{3/2} \sqrt {2+b x}} \, dx\\ &=-\frac {\sqrt {2+b x}}{7 x^{7/2}}+\frac {3 b \sqrt {2+b x}}{35 x^{5/2}}-\frac {2 b^2 \sqrt {2+b x}}{35 x^{3/2}}+\frac {2 b^3 \sqrt {2+b x}}{35 \sqrt {x}}\\ \end {align*}
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Mathematica [A] time = 0.01, size = 40, normalized size = 0.50 \[ \frac {\sqrt {b x+2} \left (2 b^3 x^3-2 b^2 x^2+3 b x-5\right )}{35 x^{7/2}} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.41, size = 34, normalized size = 0.42 \[ \frac {{\left (2 \, b^{3} x^{3} - 2 \, b^{2} x^{2} + 3 \, b x - 5\right )} \sqrt {b x + 2}}{35 \, x^{\frac {7}{2}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.03, size = 68, normalized size = 0.85 \[ -\frac {{\left (35 \, b^{7} - {\left (35 \, b^{7} + 2 \, {\left ({\left (b x + 2\right )} b^{7} - 7 \, b^{7}\right )} {\left (b x + 2\right )}\right )} {\left (b x + 2\right )}\right )} \sqrt {b x + 2} b}{35 \, {\left ({\left (b x + 2\right )} b - 2 \, b\right )}^{\frac {7}{2}} {\left | b \right |}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 35, normalized size = 0.44 \[ \frac {\sqrt {b x +2}\, \left (2 b^{3} x^{3}-2 b^{2} x^{2}+3 b x -5\right )}{35 x^{\frac {7}{2}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.29, size = 56, normalized size = 0.70 \[ \frac {\sqrt {b x + 2} b^{3}}{8 \, \sqrt {x}} - \frac {{\left (b x + 2\right )}^{\frac {3}{2}} b^{2}}{8 \, x^{\frac {3}{2}}} + \frac {3 \, {\left (b x + 2\right )}^{\frac {5}{2}} b}{40 \, x^{\frac {5}{2}}} - \frac {{\left (b x + 2\right )}^{\frac {7}{2}}}{56 \, x^{\frac {7}{2}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.33, size = 33, normalized size = 0.41 \[ \frac {\sqrt {b\,x+2}\,\left (\frac {2\,b^3\,x^3}{35}-\frac {2\,b^2\,x^2}{35}+\frac {3\,b\,x}{35}-\frac {1}{7}\right )}{x^{7/2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [B] time = 15.99, size = 374, normalized size = 4.68 \[ \frac {2 b^{\frac {31}{2}} x^{6} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} + \frac {10 b^{\frac {29}{2}} x^{5} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} + \frac {15 b^{\frac {27}{2}} x^{4} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} + \frac {5 b^{\frac {25}{2}} x^{3} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} - \frac {10 b^{\frac {23}{2}} x^{2} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} - \frac {36 b^{\frac {21}{2}} x \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} - \frac {40 b^{\frac {19}{2}} \sqrt {1 + \frac {2}{b x}}}{35 b^{12} x^{6} + 210 b^{11} x^{5} + 420 b^{10} x^{4} + 280 b^{9} x^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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