Integrand size = 17, antiderivative size = 74 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=-\frac {2 \left (a x+b x^2\right )^{7/2}}{11 a x^9}+\frac {8 b \left (a x+b x^2\right )^{7/2}}{99 a^2 x^8}-\frac {16 b^2 \left (a x+b x^2\right )^{7/2}}{693 a^3 x^7} \]
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Time = 0.02 (sec) , antiderivative size = 74, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {672, 664} \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=-\frac {16 b^2 \left (a x+b x^2\right )^{7/2}}{693 a^3 x^7}+\frac {8 b \left (a x+b x^2\right )^{7/2}}{99 a^2 x^8}-\frac {2 \left (a x+b x^2\right )^{7/2}}{11 a x^9} \]
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Rule 664
Rule 672
Rubi steps \begin{align*} \text {integral}& = -\frac {2 \left (a x+b x^2\right )^{7/2}}{11 a x^9}-\frac {(4 b) \int \frac {\left (a x+b x^2\right )^{5/2}}{x^8} \, dx}{11 a} \\ & = -\frac {2 \left (a x+b x^2\right )^{7/2}}{11 a x^9}+\frac {8 b \left (a x+b x^2\right )^{7/2}}{99 a^2 x^8}+\frac {\left (8 b^2\right ) \int \frac {\left (a x+b x^2\right )^{5/2}}{x^7} \, dx}{99 a^2} \\ & = -\frac {2 \left (a x+b x^2\right )^{7/2}}{11 a x^9}+\frac {8 b \left (a x+b x^2\right )^{7/2}}{99 a^2 x^8}-\frac {16 b^2 \left (a x+b x^2\right )^{7/2}}{693 a^3 x^7} \\ \end{align*}
Time = 0.20 (sec) , antiderivative size = 40, normalized size of antiderivative = 0.54 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=-\frac {2 (x (a+b x))^{7/2} \left (63 a^2-28 a b x+8 b^2 x^2\right )}{693 a^3 x^9} \]
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Time = 2.17 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.57
method | result | size |
pseudoelliptic | \(-\frac {2 \left (\frac {8}{63} b^{2} x^{2}-\frac {4}{9} a b x +a^{2}\right ) \left (b x +a \right )^{3} \sqrt {x \left (b x +a \right )}}{11 x^{6} a^{3}}\) | \(42\) |
gosper | \(-\frac {2 \left (b x +a \right ) \left (8 b^{2} x^{2}-28 a b x +63 a^{2}\right ) \left (b \,x^{2}+a x \right )^{\frac {5}{2}}}{693 x^{8} a^{3}}\) | \(44\) |
default | \(-\frac {2 \left (b \,x^{2}+a x \right )^{\frac {7}{2}}}{11 a \,x^{9}}-\frac {4 b \left (-\frac {2 \left (b \,x^{2}+a x \right )^{\frac {7}{2}}}{9 a \,x^{8}}+\frac {4 b \left (b \,x^{2}+a x \right )^{\frac {7}{2}}}{63 a^{2} x^{7}}\right )}{11 a}\) | \(67\) |
trager | \(-\frac {2 \left (8 b^{5} x^{5}-4 a \,b^{4} x^{4}+3 a^{2} b^{3} x^{3}+113 a^{3} b^{2} x^{2}+161 a^{4} b x +63 a^{5}\right ) \sqrt {b \,x^{2}+a x}}{693 x^{6} a^{3}}\) | \(72\) |
risch | \(-\frac {2 \left (b x +a \right ) \left (8 b^{5} x^{5}-4 a \,b^{4} x^{4}+3 a^{2} b^{3} x^{3}+113 a^{3} b^{2} x^{2}+161 a^{4} b x +63 a^{5}\right )}{693 x^{5} \sqrt {x \left (b x +a \right )}\, a^{3}}\) | \(75\) |
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none
Time = 0.27 (sec) , antiderivative size = 71, normalized size of antiderivative = 0.96 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=-\frac {2 \, {\left (8 \, b^{5} x^{5} - 4 \, a b^{4} x^{4} + 3 \, a^{2} b^{3} x^{3} + 113 \, a^{3} b^{2} x^{2} + 161 \, a^{4} b x + 63 \, a^{5}\right )} \sqrt {b x^{2} + a x}}{693 \, a^{3} x^{6}} \]
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\[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=\int \frac {\left (x \left (a + b x\right )\right )^{\frac {5}{2}}}{x^{9}}\, dx \]
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Leaf count of result is larger than twice the leaf count of optimal. 156 vs. \(2 (62) = 124\).
Time = 0.20 (sec) , antiderivative size = 156, normalized size of antiderivative = 2.11 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=-\frac {16 \, \sqrt {b x^{2} + a x} b^{5}}{693 \, a^{3} x} + \frac {8 \, \sqrt {b x^{2} + a x} b^{4}}{693 \, a^{2} x^{2}} - \frac {2 \, \sqrt {b x^{2} + a x} b^{3}}{231 \, a x^{3}} + \frac {5 \, \sqrt {b x^{2} + a x} b^{2}}{693 \, x^{4}} - \frac {5 \, \sqrt {b x^{2} + a x} a b}{792 \, x^{5}} - \frac {5 \, \sqrt {b x^{2} + a x} a^{2}}{88 \, x^{6}} + \frac {5 \, {\left (b x^{2} + a x\right )}^{\frac {3}{2}} a}{24 \, x^{7}} - \frac {{\left (b x^{2} + a x\right )}^{\frac {5}{2}}}{3 \, x^{8}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 252 vs. \(2 (62) = 124\).
Time = 0.29 (sec) , antiderivative size = 252, normalized size of antiderivative = 3.41 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=\frac {2 \, {\left (924 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{8} b^{4} + 4851 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{7} a b^{\frac {7}{2}} + 11781 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{6} a^{2} b^{3} + 16863 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{5} a^{3} b^{\frac {5}{2}} + 15345 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{4} a^{4} b^{2} + 9009 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{3} a^{5} b^{\frac {3}{2}} + 3311 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{2} a^{6} b + 693 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )} a^{7} \sqrt {b} + 63 \, a^{8}\right )}}{693 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a x}\right )}^{11}} \]
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Time = 10.10 (sec) , antiderivative size = 123, normalized size of antiderivative = 1.66 \[ \int \frac {\left (a x+b x^2\right )^{5/2}}{x^9} \, dx=\frac {8\,b^4\,\sqrt {b\,x^2+a\,x}}{693\,a^2\,x^2}-\frac {226\,b^2\,\sqrt {b\,x^2+a\,x}}{693\,x^4}-\frac {2\,b^3\,\sqrt {b\,x^2+a\,x}}{231\,a\,x^3}-\frac {2\,a^2\,\sqrt {b\,x^2+a\,x}}{11\,x^6}-\frac {16\,b^5\,\sqrt {b\,x^2+a\,x}}{693\,a^3\,x}-\frac {46\,a\,b\,\sqrt {b\,x^2+a\,x}}{99\,x^5} \]
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