Integrand size = 13, antiderivative size = 119 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=-\frac {63 b^4 \sqrt {a+b x}}{128 x}-\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}-\frac {63 b^5 \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{128 \sqrt {a}} \]
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Time = 0.03 (sec) , antiderivative size = 119, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {43, 65, 214} \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=-\frac {63 b^5 \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{128 \sqrt {a}}-\frac {63 b^4 \sqrt {a+b x}}{128 x}-\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {(a+b x)^{9/2}}{5 x^5}-\frac {9 b (a+b x)^{7/2}}{40 x^4} \]
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Rule 43
Rule 65
Rule 214
Rubi steps \begin{align*} \text {integral}& = -\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{10} (9 b) \int \frac {(a+b x)^{7/2}}{x^5} \, dx \\ & = -\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{80} \left (63 b^2\right ) \int \frac {(a+b x)^{5/2}}{x^4} \, dx \\ & = -\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{32} \left (21 b^3\right ) \int \frac {(a+b x)^{3/2}}{x^3} \, dx \\ & = -\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{128} \left (63 b^4\right ) \int \frac {\sqrt {a+b x}}{x^2} \, dx \\ & = -\frac {63 b^4 \sqrt {a+b x}}{128 x}-\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{256} \left (63 b^5\right ) \int \frac {1}{x \sqrt {a+b x}} \, dx \\ & = -\frac {63 b^4 \sqrt {a+b x}}{128 x}-\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}+\frac {1}{128} \left (63 b^4\right ) \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x}\right ) \\ & = -\frac {63 b^4 \sqrt {a+b x}}{128 x}-\frac {21 b^3 (a+b x)^{3/2}}{64 x^2}-\frac {21 b^2 (a+b x)^{5/2}}{80 x^3}-\frac {9 b (a+b x)^{7/2}}{40 x^4}-\frac {(a+b x)^{9/2}}{5 x^5}-\frac {63 b^5 \tanh ^{-1}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{128 \sqrt {a}} \\ \end{align*}
Time = 0.18 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.72 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=\frac {1}{640} \left (-\frac {\sqrt {a+b x} \left (128 a^4+656 a^3 b x+1368 a^2 b^2 x^2+1490 a b^3 x^3+965 b^4 x^4\right )}{x^5}-\frac {315 b^5 \text {arctanh}\left (\frac {\sqrt {a+b x}}{\sqrt {a}}\right )}{\sqrt {a}}\right ) \]
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Time = 0.13 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.63
method | result | size |
risch | \(-\frac {\sqrt {b x +a}\, \left (965 b^{4} x^{4}+1490 a \,b^{3} x^{3}+1368 a^{2} b^{2} x^{2}+656 a^{3} b x +128 a^{4}\right )}{640 x^{5}}-\frac {63 b^{5} \operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{128 \sqrt {a}}\) | \(75\) |
derivativedivides | \(2 b^{5} \left (-\frac {\frac {193 \left (b x +a \right )^{\frac {9}{2}}}{256}-\frac {237 a \left (b x +a \right )^{\frac {7}{2}}}{128}+\frac {21 a^{2} \left (b x +a \right )^{\frac {5}{2}}}{10}-\frac {147 a^{3} \left (b x +a \right )^{\frac {3}{2}}}{128}+\frac {63 a^{4} \sqrt {b x +a}}{256}}{b^{5} x^{5}}-\frac {63 \,\operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{256 \sqrt {a}}\right )\) | \(88\) |
default | \(2 b^{5} \left (-\frac {\frac {193 \left (b x +a \right )^{\frac {9}{2}}}{256}-\frac {237 a \left (b x +a \right )^{\frac {7}{2}}}{128}+\frac {21 a^{2} \left (b x +a \right )^{\frac {5}{2}}}{10}-\frac {147 a^{3} \left (b x +a \right )^{\frac {3}{2}}}{128}+\frac {63 a^{4} \sqrt {b x +a}}{256}}{b^{5} x^{5}}-\frac {63 \,\operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right )}{256 \sqrt {a}}\right )\) | \(88\) |
pseudoelliptic | \(\frac {-315 \,\operatorname {arctanh}\left (\frac {\sqrt {b x +a}}{\sqrt {a}}\right ) b^{5} x^{5}-128 \sqrt {b x +a}\, a^{\frac {9}{2}}-656 a^{\frac {7}{2}} \sqrt {b x +a}\, b x -1368 a^{\frac {5}{2}} b^{2} x^{2} \sqrt {b x +a}-1490 a^{\frac {3}{2}} b^{3} x^{3} \sqrt {b x +a}-965 b^{4} x^{4} \sqrt {b x +a}\, \sqrt {a}}{640 x^{5} \sqrt {a}}\) | \(110\) |
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Time = 0.23 (sec) , antiderivative size = 190, normalized size of antiderivative = 1.60 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=\left [\frac {315 \, \sqrt {a} b^{5} x^{5} \log \left (\frac {b x - 2 \, \sqrt {b x + a} \sqrt {a} + 2 \, a}{x}\right ) - 2 \, {\left (965 \, a b^{4} x^{4} + 1490 \, a^{2} b^{3} x^{3} + 1368 \, a^{3} b^{2} x^{2} + 656 \, a^{4} b x + 128 \, a^{5}\right )} \sqrt {b x + a}}{1280 \, a x^{5}}, \frac {315 \, \sqrt {-a} b^{5} x^{5} \arctan \left (\frac {\sqrt {b x + a} \sqrt {-a}}{a}\right ) - {\left (965 \, a b^{4} x^{4} + 1490 \, a^{2} b^{3} x^{3} + 1368 \, a^{3} b^{2} x^{2} + 656 \, a^{4} b x + 128 \, a^{5}\right )} \sqrt {b x + a}}{640 \, a x^{5}}\right ] \]
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Time = 14.44 (sec) , antiderivative size = 158, normalized size of antiderivative = 1.33 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=- \frac {a^{4} \sqrt {b} \sqrt {\frac {a}{b x} + 1}}{5 x^{\frac {9}{2}}} - \frac {41 a^{3} b^{\frac {3}{2}} \sqrt {\frac {a}{b x} + 1}}{40 x^{\frac {7}{2}}} - \frac {171 a^{2} b^{\frac {5}{2}} \sqrt {\frac {a}{b x} + 1}}{80 x^{\frac {5}{2}}} - \frac {149 a b^{\frac {7}{2}} \sqrt {\frac {a}{b x} + 1}}{64 x^{\frac {3}{2}}} - \frac {193 b^{\frac {9}{2}} \sqrt {\frac {a}{b x} + 1}}{128 \sqrt {x}} - \frac {63 b^{5} \operatorname {asinh}{\left (\frac {\sqrt {a}}{\sqrt {b} \sqrt {x}} \right )}}{128 \sqrt {a}} \]
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Time = 0.30 (sec) , antiderivative size = 169, normalized size of antiderivative = 1.42 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=\frac {63 \, b^{5} \log \left (\frac {\sqrt {b x + a} - \sqrt {a}}{\sqrt {b x + a} + \sqrt {a}}\right )}{256 \, \sqrt {a}} - \frac {965 \, {\left (b x + a\right )}^{\frac {9}{2}} b^{5} - 2370 \, {\left (b x + a\right )}^{\frac {7}{2}} a b^{5} + 2688 \, {\left (b x + a\right )}^{\frac {5}{2}} a^{2} b^{5} - 1470 \, {\left (b x + a\right )}^{\frac {3}{2}} a^{3} b^{5} + 315 \, \sqrt {b x + a} a^{4} b^{5}}{640 \, {\left ({\left (b x + a\right )}^{5} - 5 \, {\left (b x + a\right )}^{4} a + 10 \, {\left (b x + a\right )}^{3} a^{2} - 10 \, {\left (b x + a\right )}^{2} a^{3} + 5 \, {\left (b x + a\right )} a^{4} - a^{5}\right )}} \]
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Time = 0.29 (sec) , antiderivative size = 109, normalized size of antiderivative = 0.92 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=\frac {\frac {315 \, b^{6} \arctan \left (\frac {\sqrt {b x + a}}{\sqrt {-a}}\right )}{\sqrt {-a}} - \frac {965 \, {\left (b x + a\right )}^{\frac {9}{2}} b^{6} - 2370 \, {\left (b x + a\right )}^{\frac {7}{2}} a b^{6} + 2688 \, {\left (b x + a\right )}^{\frac {5}{2}} a^{2} b^{6} - 1470 \, {\left (b x + a\right )}^{\frac {3}{2}} a^{3} b^{6} + 315 \, \sqrt {b x + a} a^{4} b^{6}}{b^{5} x^{5}}}{640 \, b} \]
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Time = 0.18 (sec) , antiderivative size = 94, normalized size of antiderivative = 0.79 \[ \int \frac {(a+b x)^{9/2}}{x^6} \, dx=\frac {147\,a^3\,{\left (a+b\,x\right )}^{3/2}}{64\,x^5}-\frac {63\,a^4\,\sqrt {a+b\,x}}{128\,x^5}-\frac {193\,{\left (a+b\,x\right )}^{9/2}}{128\,x^5}-\frac {21\,a^2\,{\left (a+b\,x\right )}^{5/2}}{5\,x^5}+\frac {237\,a\,{\left (a+b\,x\right )}^{7/2}}{64\,x^5}+\frac {b^5\,\mathrm {atan}\left (\frac {\sqrt {a+b\,x}\,1{}\mathrm {i}}{\sqrt {a}}\right )\,63{}\mathrm {i}}{128\,\sqrt {a}} \]
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