Integrand size = 20, antiderivative size = 46 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {(A b-a B) \left (a+b x^2\right )^{7/2}}{7 b^2}+\frac {B \left (a+b x^2\right )^{9/2}}{9 b^2} \]
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Time = 0.03 (sec) , antiderivative size = 46, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {455, 45} \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {\left (a+b x^2\right )^{7/2} (A b-a B)}{7 b^2}+\frac {B \left (a+b x^2\right )^{9/2}}{9 b^2} \]
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Rule 45
Rule 455
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int (a+b x)^{5/2} (A+B x) \, dx,x,x^2\right ) \\ & = \frac {1}{2} \text {Subst}\left (\int \left (\frac {(A b-a B) (a+b x)^{5/2}}{b}+\frac {B (a+b x)^{7/2}}{b}\right ) \, dx,x,x^2\right ) \\ & = \frac {(A b-a B) \left (a+b x^2\right )^{7/2}}{7 b^2}+\frac {B \left (a+b x^2\right )^{9/2}}{9 b^2} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.74 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {\left (a+b x^2\right )^{7/2} \left (9 A b-2 a B+7 b B x^2\right )}{63 b^2} \]
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Time = 2.80 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.67
method | result | size |
gosper | \(\frac {\left (b \,x^{2}+a \right )^{\frac {7}{2}} \left (7 b B \,x^{2}+9 A b -2 B a \right )}{63 b^{2}}\) | \(31\) |
pseudoelliptic | \(\frac {\left (\left (7 x^{2} B +9 A \right ) b -2 B a \right ) \left (b \,x^{2}+a \right )^{\frac {7}{2}}}{63 b^{2}}\) | \(32\) |
default | \(B \left (\frac {x^{2} \left (b \,x^{2}+a \right )^{\frac {7}{2}}}{9 b}-\frac {2 a \left (b \,x^{2}+a \right )^{\frac {7}{2}}}{63 b^{2}}\right )+\frac {A \left (b \,x^{2}+a \right )^{\frac {7}{2}}}{7 b}\) | \(52\) |
trager | \(\frac {\left (7 B \,x^{8} b^{4}+9 A \,x^{6} b^{4}+19 B \,x^{6} a \,b^{3}+27 A a \,b^{3} x^{4}+15 B \,a^{2} b^{2} x^{4}+27 A \,a^{2} b^{2} x^{2}+B \,a^{3} b \,x^{2}+9 A \,a^{3} b -2 B \,a^{4}\right ) \sqrt {b \,x^{2}+a}}{63 b^{2}}\) | \(100\) |
risch | \(\frac {\left (7 B \,x^{8} b^{4}+9 A \,x^{6} b^{4}+19 B \,x^{6} a \,b^{3}+27 A a \,b^{3} x^{4}+15 B \,a^{2} b^{2} x^{4}+27 A \,a^{2} b^{2} x^{2}+B \,a^{3} b \,x^{2}+9 A \,a^{3} b -2 B \,a^{4}\right ) \sqrt {b \,x^{2}+a}}{63 b^{2}}\) | \(100\) |
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Leaf count of result is larger than twice the leaf count of optimal. 97 vs. \(2 (38) = 76\).
Time = 0.26 (sec) , antiderivative size = 97, normalized size of antiderivative = 2.11 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {{\left (7 \, B b^{4} x^{8} + {\left (19 \, B a b^{3} + 9 \, A b^{4}\right )} x^{6} - 2 \, B a^{4} + 9 \, A a^{3} b + 3 \, {\left (5 \, B a^{2} b^{2} + 9 \, A a b^{3}\right )} x^{4} + {\left (B a^{3} b + 27 \, A a^{2} b^{2}\right )} x^{2}\right )} \sqrt {b x^{2} + a}}{63 \, b^{2}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 209 vs. \(2 (39) = 78\).
Time = 0.43 (sec) , antiderivative size = 209, normalized size of antiderivative = 4.54 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\begin {cases} \frac {A a^{3} \sqrt {a + b x^{2}}}{7 b} + \frac {3 A a^{2} x^{2} \sqrt {a + b x^{2}}}{7} + \frac {3 A a b x^{4} \sqrt {a + b x^{2}}}{7} + \frac {A b^{2} x^{6} \sqrt {a + b x^{2}}}{7} - \frac {2 B a^{4} \sqrt {a + b x^{2}}}{63 b^{2}} + \frac {B a^{3} x^{2} \sqrt {a + b x^{2}}}{63 b} + \frac {5 B a^{2} x^{4} \sqrt {a + b x^{2}}}{21} + \frac {19 B a b x^{6} \sqrt {a + b x^{2}}}{63} + \frac {B b^{2} x^{8} \sqrt {a + b x^{2}}}{9} & \text {for}\: b \neq 0 \\a^{\frac {5}{2}} \left (\frac {A x^{2}}{2} + \frac {B x^{4}}{4}\right ) & \text {otherwise} \end {cases} \]
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none
Time = 0.20 (sec) , antiderivative size = 50, normalized size of antiderivative = 1.09 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {{\left (b x^{2} + a\right )}^{\frac {7}{2}} B x^{2}}{9 \, b} - \frac {2 \, {\left (b x^{2} + a\right )}^{\frac {7}{2}} B a}{63 \, b^{2}} + \frac {{\left (b x^{2} + a\right )}^{\frac {7}{2}} A}{7 \, b} \]
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Time = 0.29 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.96 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {7 \, {\left (b x^{2} + a\right )}^{\frac {9}{2}} B - 9 \, {\left (b x^{2} + a\right )}^{\frac {7}{2}} B a + 9 \, {\left (b x^{2} + a\right )}^{\frac {7}{2}} A b}{63 \, b^{2}} \]
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Time = 5.11 (sec) , antiderivative size = 44, normalized size of antiderivative = 0.96 \[ \int x \left (a+b x^2\right )^{5/2} \left (A+B x^2\right ) \, dx=\frac {7\,B\,{\left (b\,x^2+a\right )}^{9/2}+9\,A\,b\,{\left (b\,x^2+a\right )}^{7/2}-9\,B\,a\,{\left (b\,x^2+a\right )}^{7/2}}{63\,b^2} \]
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