Integrand size = 22, antiderivative size = 63 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2}{9} a^2 A x^{9/2}+\frac {2}{13} a (2 A b+a B) x^{13/2}+\frac {2}{17} b (A b+2 a B) x^{17/2}+\frac {2}{21} b^2 B x^{21/2} \]
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Time = 0.03 (sec) , antiderivative size = 63, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.045, Rules used = {459} \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2}{9} a^2 A x^{9/2}+\frac {2}{17} b x^{17/2} (2 a B+A b)+\frac {2}{13} a x^{13/2} (a B+2 A b)+\frac {2}{21} b^2 B x^{21/2} \]
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Rule 459
Rubi steps \begin{align*} \text {integral}& = \int \left (a^2 A x^{7/2}+a (2 A b+a B) x^{11/2}+b (A b+2 a B) x^{15/2}+b^2 B x^{19/2}\right ) \, dx \\ & = \frac {2}{9} a^2 A x^{9/2}+\frac {2}{13} a (2 A b+a B) x^{13/2}+\frac {2}{17} b (A b+2 a B) x^{17/2}+\frac {2}{21} b^2 B x^{21/2} \\ \end{align*}
Time = 0.04 (sec) , antiderivative size = 60, normalized size of antiderivative = 0.95 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2 x^{9/2} \left (119 a^2 \left (13 A+9 B x^2\right )+126 a b x^2 \left (17 A+13 B x^2\right )+39 b^2 x^4 \left (21 A+17 B x^2\right )\right )}{13923} \]
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Time = 2.68 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.83
method | result | size |
derivativedivides | \(\frac {2 b^{2} B \,x^{\frac {21}{2}}}{21}+\frac {2 \left (b^{2} A +2 a b B \right ) x^{\frac {17}{2}}}{17}+\frac {2 \left (2 a b A +a^{2} B \right ) x^{\frac {13}{2}}}{13}+\frac {2 a^{2} A \,x^{\frac {9}{2}}}{9}\) | \(52\) |
default | \(\frac {2 b^{2} B \,x^{\frac {21}{2}}}{21}+\frac {2 \left (b^{2} A +2 a b B \right ) x^{\frac {17}{2}}}{17}+\frac {2 \left (2 a b A +a^{2} B \right ) x^{\frac {13}{2}}}{13}+\frac {2 a^{2} A \,x^{\frac {9}{2}}}{9}\) | \(52\) |
gosper | \(\frac {2 x^{\frac {9}{2}} \left (663 b^{2} B \,x^{6}+819 A \,b^{2} x^{4}+1638 B a b \,x^{4}+2142 a A b \,x^{2}+1071 a^{2} B \,x^{2}+1547 a^{2} A \right )}{13923}\) | \(56\) |
trager | \(\frac {2 x^{\frac {9}{2}} \left (663 b^{2} B \,x^{6}+819 A \,b^{2} x^{4}+1638 B a b \,x^{4}+2142 a A b \,x^{2}+1071 a^{2} B \,x^{2}+1547 a^{2} A \right )}{13923}\) | \(56\) |
risch | \(\frac {2 x^{\frac {9}{2}} \left (663 b^{2} B \,x^{6}+819 A \,b^{2} x^{4}+1638 B a b \,x^{4}+2142 a A b \,x^{2}+1071 a^{2} B \,x^{2}+1547 a^{2} A \right )}{13923}\) | \(56\) |
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Time = 0.25 (sec) , antiderivative size = 56, normalized size of antiderivative = 0.89 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2}{13923} \, {\left (663 \, B b^{2} x^{10} + 819 \, {\left (2 \, B a b + A b^{2}\right )} x^{8} + 1547 \, A a^{2} x^{4} + 1071 \, {\left (B a^{2} + 2 \, A a b\right )} x^{6}\right )} \sqrt {x} \]
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Time = 0.93 (sec) , antiderivative size = 80, normalized size of antiderivative = 1.27 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2 A a^{2} x^{\frac {9}{2}}}{9} + \frac {4 A a b x^{\frac {13}{2}}}{13} + \frac {2 A b^{2} x^{\frac {17}{2}}}{17} + \frac {2 B a^{2} x^{\frac {13}{2}}}{13} + \frac {4 B a b x^{\frac {17}{2}}}{17} + \frac {2 B b^{2} x^{\frac {21}{2}}}{21} \]
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Time = 0.20 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.81 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2}{21} \, B b^{2} x^{\frac {21}{2}} + \frac {2}{17} \, {\left (2 \, B a b + A b^{2}\right )} x^{\frac {17}{2}} + \frac {2}{9} \, A a^{2} x^{\frac {9}{2}} + \frac {2}{13} \, {\left (B a^{2} + 2 \, A a b\right )} x^{\frac {13}{2}} \]
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Time = 0.27 (sec) , antiderivative size = 53, normalized size of antiderivative = 0.84 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=\frac {2}{21} \, B b^{2} x^{\frac {21}{2}} + \frac {4}{17} \, B a b x^{\frac {17}{2}} + \frac {2}{17} \, A b^{2} x^{\frac {17}{2}} + \frac {2}{13} \, B a^{2} x^{\frac {13}{2}} + \frac {4}{13} \, A a b x^{\frac {13}{2}} + \frac {2}{9} \, A a^{2} x^{\frac {9}{2}} \]
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Time = 5.03 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.81 \[ \int x^{7/2} \left (a+b x^2\right )^2 \left (A+B x^2\right ) \, dx=x^{13/2}\,\left (\frac {2\,B\,a^2}{13}+\frac {4\,A\,b\,a}{13}\right )+x^{17/2}\,\left (\frac {2\,A\,b^2}{17}+\frac {4\,B\,a\,b}{17}\right )+\frac {2\,A\,a^2\,x^{9/2}}{9}+\frac {2\,B\,b^2\,x^{21/2}}{21} \]
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