Integrand size = 22, antiderivative size = 108 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=-\frac {b^2 B \sqrt {a+b x^2}}{x}-\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+b^{5/2} B \text {arctanh}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 108, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {462, 283, 223, 212} \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+b^{5/2} B \text {arctanh}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )-\frac {b^2 B \sqrt {a+b x^2}}{x}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3} \]
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Rule 212
Rule 223
Rule 283
Rule 462
Rubi steps \begin{align*} \text {integral}& = -\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+B \int \frac {\left (a+b x^2\right )^{5/2}}{x^6} \, dx \\ & = -\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+(b B) \int \frac {\left (a+b x^2\right )^{3/2}}{x^4} \, dx \\ & = -\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+\left (b^2 B\right ) \int \frac {\sqrt {a+b x^2}}{x^2} \, dx \\ & = -\frac {b^2 B \sqrt {a+b x^2}}{x}-\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+\left (b^3 B\right ) \int \frac {1}{\sqrt {a+b x^2}} \, dx \\ & = -\frac {b^2 B \sqrt {a+b x^2}}{x}-\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+\left (b^3 B\right ) \text {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {x}{\sqrt {a+b x^2}}\right ) \\ & = -\frac {b^2 B \sqrt {a+b x^2}}{x}-\frac {b B \left (a+b x^2\right )^{3/2}}{3 x^3}-\frac {B \left (a+b x^2\right )^{5/2}}{5 x^5}-\frac {A \left (a+b x^2\right )^{7/2}}{7 a x^7}+b^{5/2} B \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right ) \\ \end{align*}
Time = 0.22 (sec) , antiderivative size = 112, normalized size of antiderivative = 1.04 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=-\frac {\sqrt {a+b x^2} \left (15 A b^3 x^6+3 a^3 \left (5 A+7 B x^2\right )+a^2 b x^2 \left (45 A+77 B x^2\right )+a b^2 x^4 \left (45 A+161 B x^2\right )\right )}{105 a x^7}-b^{5/2} B \log \left (-\sqrt {b} x+\sqrt {a+b x^2}\right ) \]
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Time = 2.94 (sec) , antiderivative size = 103, normalized size of antiderivative = 0.95
method | result | size |
pseudoelliptic | \(\frac {7 B a \,b^{\frac {5}{2}} \operatorname {arctanh}\left (\frac {\sqrt {b \,x^{2}+a}}{x \sqrt {b}}\right ) x^{7}-\left (\left (\frac {7 x^{2} B}{5}+A \right ) a^{3}+3 x^{2} b \left (\frac {77 x^{2} B}{45}+A \right ) a^{2}+3 x^{4} \left (\frac {161 x^{2} B}{45}+A \right ) b^{2} a +x^{6} b^{3} A \right ) \sqrt {b \,x^{2}+a}}{7 a \,x^{7}}\) | \(103\) |
risch | \(-\frac {\sqrt {b \,x^{2}+a}\, \left (15 x^{6} b^{3} A +161 x^{6} a \,b^{2} B +45 A a \,b^{2} x^{4}+77 B \,a^{2} b \,x^{4}+45 A \,a^{2} b \,x^{2}+21 B \,a^{3} x^{2}+15 a^{3} A \right )}{105 x^{7} a}+B \,b^{\frac {5}{2}} \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right )\) | \(105\) |
default | \(-\frac {A \left (b \,x^{2}+a \right )^{\frac {7}{2}}}{7 a \,x^{7}}+B \left (-\frac {\left (b \,x^{2}+a \right )^{\frac {7}{2}}}{5 a \,x^{5}}+\frac {2 b \left (-\frac {\left (b \,x^{2}+a \right )^{\frac {7}{2}}}{3 a \,x^{3}}+\frac {4 b \left (-\frac {\left (b \,x^{2}+a \right )^{\frac {7}{2}}}{a x}+\frac {6 b \left (\frac {x \left (b \,x^{2}+a \right )^{\frac {5}{2}}}{6}+\frac {5 a \left (\frac {x \left (b \,x^{2}+a \right )^{\frac {3}{2}}}{4}+\frac {3 a \left (\frac {x \sqrt {b \,x^{2}+a}}{2}+\frac {a \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right )}{2 \sqrt {b}}\right )}{4}\right )}{6}\right )}{a}\right )}{3 a}\right )}{5 a}\right )\) | \(161\) |
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Time = 0.30 (sec) , antiderivative size = 234, normalized size of antiderivative = 2.17 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=\left [\frac {105 \, B a b^{\frac {5}{2}} x^{7} \log \left (-2 \, b x^{2} - 2 \, \sqrt {b x^{2} + a} \sqrt {b} x - a\right ) - 2 \, {\left ({\left (161 \, B a b^{2} + 15 \, A b^{3}\right )} x^{6} + {\left (77 \, B a^{2} b + 45 \, A a b^{2}\right )} x^{4} + 15 \, A a^{3} + 3 \, {\left (7 \, B a^{3} + 15 \, A a^{2} b\right )} x^{2}\right )} \sqrt {b x^{2} + a}}{210 \, a x^{7}}, -\frac {105 \, B a \sqrt {-b} b^{2} x^{7} \arctan \left (\frac {\sqrt {-b} x}{\sqrt {b x^{2} + a}}\right ) + {\left ({\left (161 \, B a b^{2} + 15 \, A b^{3}\right )} x^{6} + {\left (77 \, B a^{2} b + 45 \, A a b^{2}\right )} x^{4} + 15 \, A a^{3} + 3 \, {\left (7 \, B a^{3} + 15 \, A a^{2} b\right )} x^{2}\right )} \sqrt {b x^{2} + a}}{105 \, a x^{7}}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 592 vs. \(2 (95) = 190\).
Time = 3.41 (sec) , antiderivative size = 592, normalized size of antiderivative = 5.48 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=- \frac {15 A a^{7} b^{\frac {9}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {33 A a^{6} b^{\frac {11}{2}} x^{2} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {17 A a^{5} b^{\frac {13}{2}} x^{4} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {3 A a^{4} b^{\frac {15}{2}} x^{6} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {12 A a^{3} b^{\frac {17}{2}} x^{8} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {8 A a^{2} b^{\frac {19}{2}} x^{10} \sqrt {\frac {a}{b x^{2}} + 1}}{105 a^{5} b^{4} x^{6} + 210 a^{4} b^{5} x^{8} + 105 a^{3} b^{6} x^{10}} - \frac {2 A a b^{\frac {3}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{5 x^{4}} - \frac {7 A b^{\frac {5}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{15 x^{2}} - \frac {A b^{\frac {7}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{15 a} - \frac {B \sqrt {a} b^{2}}{x \sqrt {1 + \frac {b x^{2}}{a}}} - \frac {B a^{2} \sqrt {b} \sqrt {\frac {a}{b x^{2}} + 1}}{5 x^{4}} - \frac {11 B a b^{\frac {3}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{15 x^{2}} - \frac {8 B b^{\frac {5}{2}} \sqrt {\frac {a}{b x^{2}} + 1}}{15} + B b^{\frac {5}{2}} \operatorname {asinh}{\left (\frac {\sqrt {b} x}{\sqrt {a}} \right )} - \frac {B b^{3} x}{\sqrt {a} \sqrt {1 + \frac {b x^{2}}{a}}} \]
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Time = 0.21 (sec) , antiderivative size = 128, normalized size of antiderivative = 1.19 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=\frac {2 \, {\left (b x^{2} + a\right )}^{\frac {3}{2}} B b^{3} x}{3 \, a^{2}} + \frac {\sqrt {b x^{2} + a} B b^{3} x}{a} + B b^{\frac {5}{2}} \operatorname {arsinh}\left (\frac {b x}{\sqrt {a b}}\right ) - \frac {8 \, {\left (b x^{2} + a\right )}^{\frac {5}{2}} B b^{2}}{15 \, a^{2} x} - \frac {2 \, {\left (b x^{2} + a\right )}^{\frac {7}{2}} B b}{15 \, a^{2} x^{3}} - \frac {{\left (b x^{2} + a\right )}^{\frac {7}{2}} B}{5 \, a x^{5}} - \frac {{\left (b x^{2} + a\right )}^{\frac {7}{2}} A}{7 \, a x^{7}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 320 vs. \(2 (88) = 176\).
Time = 0.32 (sec) , antiderivative size = 320, normalized size of antiderivative = 2.96 \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=-\frac {1}{2} \, B b^{\frac {5}{2}} \log \left ({\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{2}\right ) + \frac {2 \, {\left (315 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{12} B a b^{\frac {5}{2}} + 105 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{12} A b^{\frac {7}{2}} - 1260 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{10} B a^{2} b^{\frac {5}{2}} + 2555 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{8} B a^{3} b^{\frac {5}{2}} + 525 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{8} A a^{2} b^{\frac {7}{2}} - 3080 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{6} B a^{4} b^{\frac {5}{2}} + 2121 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{4} B a^{5} b^{\frac {5}{2}} + 315 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{4} A a^{4} b^{\frac {7}{2}} - 812 \, {\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{2} B a^{6} b^{\frac {5}{2}} + 161 \, B a^{7} b^{\frac {5}{2}} + 15 \, A a^{6} b^{\frac {7}{2}}\right )}}{105 \, {\left ({\left (\sqrt {b} x - \sqrt {b x^{2} + a}\right )}^{2} - a\right )}^{7}} \]
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Timed out. \[ \int \frac {\left (a+b x^2\right )^{5/2} \left (A+B x^2\right )}{x^8} \, dx=\int \frac {\left (B\,x^2+A\right )\,{\left (b\,x^2+a\right )}^{5/2}}{x^8} \,d x \]
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