Integrand size = 21, antiderivative size = 105 \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=-\frac {(b c-a d) x \left (a+b x^2\right )}{3 c d \left (c+d x^2\right )^{3/2}}-\frac {(b c-a d) (3 b c+2 a d) x}{3 c^2 d^2 \sqrt {c+d x^2}}+\frac {b^2 \text {arctanh}\left (\frac {\sqrt {d} x}{\sqrt {c+d x^2}}\right )}{d^{5/2}} \]
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Time = 0.04 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.190, Rules used = {424, 393, 223, 212} \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=-\frac {x (b c-a d) (2 a d+3 b c)}{3 c^2 d^2 \sqrt {c+d x^2}}-\frac {x \left (a+b x^2\right ) (b c-a d)}{3 c d \left (c+d x^2\right )^{3/2}}+\frac {b^2 \text {arctanh}\left (\frac {\sqrt {d} x}{\sqrt {c+d x^2}}\right )}{d^{5/2}} \]
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Rule 212
Rule 223
Rule 393
Rule 424
Rubi steps \begin{align*} \text {integral}& = -\frac {(b c-a d) x \left (a+b x^2\right )}{3 c d \left (c+d x^2\right )^{3/2}}+\frac {\int \frac {a (b c+2 a d)+3 b^2 c x^2}{\left (c+d x^2\right )^{3/2}} \, dx}{3 c d} \\ & = -\frac {(b c-a d) x \left (a+b x^2\right )}{3 c d \left (c+d x^2\right )^{3/2}}-\frac {(b c-a d) (3 b c+2 a d) x}{3 c^2 d^2 \sqrt {c+d x^2}}+\frac {b^2 \int \frac {1}{\sqrt {c+d x^2}} \, dx}{d^2} \\ & = -\frac {(b c-a d) x \left (a+b x^2\right )}{3 c d \left (c+d x^2\right )^{3/2}}-\frac {(b c-a d) (3 b c+2 a d) x}{3 c^2 d^2 \sqrt {c+d x^2}}+\frac {b^2 \text {Subst}\left (\int \frac {1}{1-d x^2} \, dx,x,\frac {x}{\sqrt {c+d x^2}}\right )}{d^2} \\ & = -\frac {(b c-a d) x \left (a+b x^2\right )}{3 c d \left (c+d x^2\right )^{3/2}}-\frac {(b c-a d) (3 b c+2 a d) x}{3 c^2 d^2 \sqrt {c+d x^2}}+\frac {b^2 \tanh ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c+d x^2}}\right )}{d^{5/2}} \\ \end{align*}
Time = 0.17 (sec) , antiderivative size = 91, normalized size of antiderivative = 0.87 \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=-\frac {(b c-a d) x \left (3 b c^2+3 a c d+4 b c d x^2+2 a d^2 x^2\right )}{3 c^2 d^2 \left (c+d x^2\right )^{3/2}}-\frac {b^2 \log \left (-\sqrt {d} x+\sqrt {c+d x^2}\right )}{d^{5/2}} \]
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Time = 2.93 (sec) , antiderivative size = 104, normalized size of antiderivative = 0.99
method | result | size |
pseudoelliptic | \(\frac {\left (d \,x^{2}+c \right )^{\frac {3}{2}} \operatorname {arctanh}\left (\frac {\sqrt {d \,x^{2}+c}}{x \sqrt {d}}\right ) b^{2} c^{2}+x \left (a c \left (\frac {2 b \,x^{2}}{3}+a \right ) d^{\frac {5}{2}}-\frac {4 d^{\frac {3}{2}} b^{2} c^{2} x^{2}}{3}-b^{2} c^{3} \sqrt {d}+\frac {2 d^{\frac {7}{2}} a^{2} x^{2}}{3}\right )}{\left (d \,x^{2}+c \right )^{\frac {3}{2}} d^{\frac {5}{2}} c^{2}}\) | \(104\) |
default | \(a^{2} \left (\frac {x}{3 c \left (d \,x^{2}+c \right )^{\frac {3}{2}}}+\frac {2 x}{3 c^{2} \sqrt {d \,x^{2}+c}}\right )+b^{2} \left (-\frac {x^{3}}{3 d \left (d \,x^{2}+c \right )^{\frac {3}{2}}}+\frac {-\frac {x}{d \sqrt {d \,x^{2}+c}}+\frac {\ln \left (x \sqrt {d}+\sqrt {d \,x^{2}+c}\right )}{d^{\frac {3}{2}}}}{d}\right )+2 a b \left (-\frac {x}{2 d \left (d \,x^{2}+c \right )^{\frac {3}{2}}}+\frac {c \left (\frac {x}{3 c \left (d \,x^{2}+c \right )^{\frac {3}{2}}}+\frac {2 x}{3 c^{2} \sqrt {d \,x^{2}+c}}\right )}{2 d}\right )\) | \(156\) |
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Time = 0.26 (sec) , antiderivative size = 321, normalized size of antiderivative = 3.06 \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=\left [\frac {3 \, {\left (b^{2} c^{2} d^{2} x^{4} + 2 \, b^{2} c^{3} d x^{2} + b^{2} c^{4}\right )} \sqrt {d} \log \left (-2 \, d x^{2} - 2 \, \sqrt {d x^{2} + c} \sqrt {d} x - c\right ) - 2 \, {\left (2 \, {\left (2 \, b^{2} c^{2} d^{2} - a b c d^{3} - a^{2} d^{4}\right )} x^{3} + 3 \, {\left (b^{2} c^{3} d - a^{2} c d^{3}\right )} x\right )} \sqrt {d x^{2} + c}}{6 \, {\left (c^{2} d^{5} x^{4} + 2 \, c^{3} d^{4} x^{2} + c^{4} d^{3}\right )}}, -\frac {3 \, {\left (b^{2} c^{2} d^{2} x^{4} + 2 \, b^{2} c^{3} d x^{2} + b^{2} c^{4}\right )} \sqrt {-d} \arctan \left (\frac {\sqrt {-d} x}{\sqrt {d x^{2} + c}}\right ) + {\left (2 \, {\left (2 \, b^{2} c^{2} d^{2} - a b c d^{3} - a^{2} d^{4}\right )} x^{3} + 3 \, {\left (b^{2} c^{3} d - a^{2} c d^{3}\right )} x\right )} \sqrt {d x^{2} + c}}{3 \, {\left (c^{2} d^{5} x^{4} + 2 \, c^{3} d^{4} x^{2} + c^{4} d^{3}\right )}}\right ] \]
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\[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=\int \frac {\left (a + b x^{2}\right )^{2}}{\left (c + d x^{2}\right )^{\frac {5}{2}}}\, dx \]
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Time = 0.20 (sec) , antiderivative size = 147, normalized size of antiderivative = 1.40 \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=-\frac {1}{3} \, b^{2} x {\left (\frac {3 \, x^{2}}{{\left (d x^{2} + c\right )}^{\frac {3}{2}} d} + \frac {2 \, c}{{\left (d x^{2} + c\right )}^{\frac {3}{2}} d^{2}}\right )} + \frac {2 \, a^{2} x}{3 \, \sqrt {d x^{2} + c} c^{2}} + \frac {a^{2} x}{3 \, {\left (d x^{2} + c\right )}^{\frac {3}{2}} c} - \frac {b^{2} x}{3 \, \sqrt {d x^{2} + c} d^{2}} - \frac {2 \, a b x}{3 \, {\left (d x^{2} + c\right )}^{\frac {3}{2}} d} + \frac {2 \, a b x}{3 \, \sqrt {d x^{2} + c} c d} + \frac {b^{2} \operatorname {arsinh}\left (\frac {d x}{\sqrt {c d}}\right )}{d^{\frac {5}{2}}} \]
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Time = 0.32 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.00 \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=-\frac {x {\left (\frac {2 \, {\left (2 \, b^{2} c^{2} d^{2} - a b c d^{3} - a^{2} d^{4}\right )} x^{2}}{c^{2} d^{3}} + \frac {3 \, {\left (b^{2} c^{3} d - a^{2} c d^{3}\right )}}{c^{2} d^{3}}\right )}}{3 \, {\left (d x^{2} + c\right )}^{\frac {3}{2}}} - \frac {b^{2} \log \left ({\left | -\sqrt {d} x + \sqrt {d x^{2} + c} \right |}\right )}{d^{\frac {5}{2}}} \]
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Timed out. \[ \int \frac {\left (a+b x^2\right )^2}{\left (c+d x^2\right )^{5/2}} \, dx=\int \frac {{\left (b\,x^2+a\right )}^2}{{\left (d\,x^2+c\right )}^{5/2}} \,d x \]
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