Integrand size = 26, antiderivative size = 429 \[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=-\frac {2 (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) x \sqrt {a+b x^2}}{35 b^2 d^3 \sqrt {c+d x^2}}+\frac {\left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 b d^3}-\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}+\frac {2 \sqrt {c} (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) \sqrt {a+b x^2} E\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{35 b^2 d^{7/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}-\frac {c^{3/2} \left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) \sqrt {a+b x^2} \operatorname {EllipticF}\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),1-\frac {b c}{a d}\right )}{35 b d^{7/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}} \]
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Time = 0.38 (sec) , antiderivative size = 429, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.231, Rules used = {488, 596, 545, 429, 506, 422} \[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\frac {2 \sqrt {c} \sqrt {a+b x^2} (2 b c-a d) \left (-a^2 d^2-4 a b c d+4 b^2 c^2\right ) E\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{35 b^2 d^{7/2} \sqrt {c+d x^2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}}}-\frac {c^{3/2} \sqrt {a+b x^2} \left (a^2 d^2-11 a b c d+8 b^2 c^2\right ) \operatorname {EllipticF}\left (\arctan \left (\frac {\sqrt {d} x}{\sqrt {c}}\right ),1-\frac {b c}{a d}\right )}{35 b d^{7/2} \sqrt {c+d x^2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}}}+\frac {x \sqrt {a+b x^2} \sqrt {c+d x^2} \left (a^2 d^2-11 a b c d+8 b^2 c^2\right )}{35 b d^3}-\frac {2 x \sqrt {a+b x^2} (2 b c-a d) \left (-a^2 d^2-4 a b c d+4 b^2 c^2\right )}{35 b^2 d^3 \sqrt {c+d x^2}}-\frac {2 x^3 \sqrt {a+b x^2} \sqrt {c+d x^2} (3 b c-4 a d)}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d} \]
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Rule 422
Rule 429
Rule 488
Rule 506
Rule 545
Rule 596
Rubi steps \begin{align*} \text {integral}& = \frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}+\frac {\int \frac {x^4 \left (-a (5 b c-7 a d)-2 b (3 b c-4 a d) x^2\right )}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{7 d} \\ & = -\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}-\frac {\int \frac {x^2 \left (-6 a b c (3 b c-4 a d)-3 b \left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x^2\right )}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{35 b d^2} \\ & = \frac {\left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 b d^3}-\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}+\frac {\int \frac {-3 a b c \left (8 b^2 c^2-11 a b c d+a^2 d^2\right )-6 b (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) x^2}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{105 b^2 d^3} \\ & = \frac {\left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 b d^3}-\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}-\frac {\left (2 (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right )\right ) \int \frac {x^2}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{35 b d^3}-\frac {\left (a c \left (8 b^2 c^2-11 a b c d+a^2 d^2\right )\right ) \int \frac {1}{\sqrt {a+b x^2} \sqrt {c+d x^2}} \, dx}{35 b d^3} \\ & = -\frac {2 (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) x \sqrt {a+b x^2}}{35 b^2 d^3 \sqrt {c+d x^2}}+\frac {\left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 b d^3}-\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}-\frac {c^{3/2} \left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) \sqrt {a+b x^2} F\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{35 b d^{7/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}+\frac {\left (2 c (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right )\right ) \int \frac {\sqrt {a+b x^2}}{\left (c+d x^2\right )^{3/2}} \, dx}{35 b^2 d^3} \\ & = -\frac {2 (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) x \sqrt {a+b x^2}}{35 b^2 d^3 \sqrt {c+d x^2}}+\frac {\left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) x \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 b d^3}-\frac {2 (3 b c-4 a d) x^3 \sqrt {a+b x^2} \sqrt {c+d x^2}}{35 d^2}+\frac {b x^5 \sqrt {a+b x^2} \sqrt {c+d x^2}}{7 d}+\frac {2 \sqrt {c} (2 b c-a d) \left (4 b^2 c^2-4 a b c d-a^2 d^2\right ) \sqrt {a+b x^2} E\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{35 b^2 d^{7/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}}-\frac {c^{3/2} \left (8 b^2 c^2-11 a b c d+a^2 d^2\right ) \sqrt {a+b x^2} F\left (\tan ^{-1}\left (\frac {\sqrt {d} x}{\sqrt {c}}\right )|1-\frac {b c}{a d}\right )}{35 b d^{7/2} \sqrt {\frac {c \left (a+b x^2\right )}{a \left (c+d x^2\right )}} \sqrt {c+d x^2}} \\ \end{align*}
Result contains complex when optimal does not.
Time = 2.83 (sec) , antiderivative size = 305, normalized size of antiderivative = 0.71 \[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\frac {\sqrt {\frac {b}{a}} d x \left (a+b x^2\right ) \left (c+d x^2\right ) \left (a^2 d^2+a b d \left (-11 c+8 d x^2\right )+b^2 \left (8 c^2-6 c d x^2+5 d^2 x^4\right )\right )+2 i c \left (8 b^3 c^3-12 a b^2 c^2 d+2 a^2 b c d^2+a^3 d^3\right ) \sqrt {1+\frac {b x^2}{a}} \sqrt {1+\frac {d x^2}{c}} E\left (i \text {arcsinh}\left (\sqrt {\frac {b}{a}} x\right )|\frac {a d}{b c}\right )-i c \left (16 b^3 c^3-32 a b^2 c^2 d+15 a^2 b c d^2+a^3 d^3\right ) \sqrt {1+\frac {b x^2}{a}} \sqrt {1+\frac {d x^2}{c}} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\sqrt {\frac {b}{a}} x\right ),\frac {a d}{b c}\right )}{35 b \sqrt {\frac {b}{a}} d^4 \sqrt {a+b x^2} \sqrt {c+d x^2}} \]
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Time = 7.50 (sec) , antiderivative size = 568, normalized size of antiderivative = 1.32
method | result | size |
risch | \(\frac {x \left (5 b^{2} d^{2} x^{4}+8 x^{2} a b \,d^{2}-6 x^{2} b^{2} c d +a^{2} d^{2}-11 a b c d +8 b^{2} c^{2}\right ) \sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}}{35 b \,d^{3}}-\frac {\left (\frac {a^{3} c \,d^{2} \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}+\frac {8 b^{2} c^{3} a \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {11 a^{2} b \,c^{2} d \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {\left (2 a^{3} d^{3}+4 a^{2} b c \,d^{2}-24 a \,b^{2} c^{2} d +16 b^{3} c^{3}\right ) c \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, \left (F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )-E\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}\, d}\right ) \sqrt {\left (b \,x^{2}+a \right ) \left (d \,x^{2}+c \right )}}{35 b \,d^{3} \sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}}\) | \(568\) |
elliptic | \(\frac {\sqrt {\left (b \,x^{2}+a \right ) \left (d \,x^{2}+c \right )}\, \left (\frac {b \,x^{5} \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}{7 d}+\frac {\left (2 a b -\frac {b \left (6 a d +6 b c \right )}{7 d}\right ) x^{3} \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}{5 b d}+\frac {\left (a^{2}-\frac {5 b a c}{7 d}-\frac {\left (2 a b -\frac {b \left (6 a d +6 b c \right )}{7 d}\right ) \left (4 a d +4 b c \right )}{5 b d}\right ) x \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}{3 b d}-\frac {\left (a^{2}-\frac {5 b a c}{7 d}-\frac {\left (2 a b -\frac {b \left (6 a d +6 b c \right )}{7 d}\right ) \left (4 a d +4 b c \right )}{5 b d}\right ) a c \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )}{3 b d \sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}}-\frac {\left (-\frac {3 \left (2 a b -\frac {b \left (6 a d +6 b c \right )}{7 d}\right ) a c}{5 b d}-\frac {\left (a^{2}-\frac {5 b a c}{7 d}-\frac {\left (2 a b -\frac {b \left (6 a d +6 b c \right )}{7 d}\right ) \left (4 a d +4 b c \right )}{5 b d}\right ) \left (2 a d +2 b c \right )}{3 b d}\right ) c \sqrt {1+\frac {b \,x^{2}}{a}}\, \sqrt {1+\frac {d \,x^{2}}{c}}\, \left (F\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )-E\left (x \sqrt {-\frac {b}{a}}, \sqrt {-1+\frac {a d +b c}{c b}}\right )\right )}{\sqrt {-\frac {b}{a}}\, \sqrt {b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c}\, d}\right )}{\sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}}\) | \(572\) |
default | \(\frac {\sqrt {b \,x^{2}+a}\, \sqrt {d \,x^{2}+c}\, \left (5 \sqrt {-\frac {b}{a}}\, b^{3} d^{4} x^{9}+13 \sqrt {-\frac {b}{a}}\, a \,b^{2} d^{4} x^{7}-\sqrt {-\frac {b}{a}}\, b^{3} c \,d^{3} x^{7}+9 \sqrt {-\frac {b}{a}}\, a^{2} b \,d^{4} x^{5}-4 \sqrt {-\frac {b}{a}}\, a \,b^{2} c \,d^{3} x^{5}+2 \sqrt {-\frac {b}{a}}\, b^{3} c^{2} d^{2} x^{5}+\sqrt {-\frac {b}{a}}\, a^{3} d^{4} x^{3}-2 \sqrt {-\frac {b}{a}}\, a^{2} b c \,d^{3} x^{3}-9 \sqrt {-\frac {b}{a}}\, a \,b^{2} c^{2} d^{2} x^{3}+8 \sqrt {-\frac {b}{a}}\, b^{3} c^{3} d \,x^{3}+\sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{3} c \,d^{3}+15 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{2} b \,c^{2} d^{2}-32 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a \,b^{2} c^{3} d +16 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, F\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) b^{3} c^{4}-2 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{3} c \,d^{3}-4 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a^{2} b \,c^{2} d^{2}+24 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) a \,b^{2} c^{3} d -16 \sqrt {\frac {b \,x^{2}+a}{a}}\, \sqrt {\frac {d \,x^{2}+c}{c}}\, E\left (x \sqrt {-\frac {b}{a}}, \sqrt {\frac {a d}{b c}}\right ) b^{3} c^{4}+\sqrt {-\frac {b}{a}}\, a^{3} c \,d^{3} x -11 \sqrt {-\frac {b}{a}}\, a^{2} b \,c^{2} d^{2} x +8 \sqrt {-\frac {b}{a}}\, a \,b^{2} c^{3} d x \right )}{35 b \,d^{4} \left (b d \,x^{4}+a d \,x^{2}+c b \,x^{2}+a c \right ) \sqrt {-\frac {b}{a}}}\) | \(782\) |
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Time = 0.12 (sec) , antiderivative size = 320, normalized size of antiderivative = 0.75 \[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\frac {2 \, {\left (8 \, b^{3} c^{4} - 12 \, a b^{2} c^{3} d + 2 \, a^{2} b c^{2} d^{2} + a^{3} c d^{3}\right )} \sqrt {b d} x \sqrt {-\frac {c}{d}} E(\arcsin \left (\frac {\sqrt {-\frac {c}{d}}}{x}\right )\,|\,\frac {a d}{b c}) - {\left (16 \, b^{3} c^{4} - 24 \, a b^{2} c^{3} d + a^{3} d^{4} + 4 \, {\left (a^{2} b + 2 \, a b^{2}\right )} c^{2} d^{2} + {\left (2 \, a^{3} - 11 \, a^{2} b\right )} c d^{3}\right )} \sqrt {b d} x \sqrt {-\frac {c}{d}} F(\arcsin \left (\frac {\sqrt {-\frac {c}{d}}}{x}\right )\,|\,\frac {a d}{b c}) + {\left (5 \, b^{3} d^{4} x^{6} - 16 \, b^{3} c^{3} d + 24 \, a b^{2} c^{2} d^{2} - 4 \, a^{2} b c d^{3} - 2 \, a^{3} d^{4} - 2 \, {\left (3 \, b^{3} c d^{3} - 4 \, a b^{2} d^{4}\right )} x^{4} + {\left (8 \, b^{3} c^{2} d^{2} - 11 \, a b^{2} c d^{3} + a^{2} b d^{4}\right )} x^{2}\right )} \sqrt {b x^{2} + a} \sqrt {d x^{2} + c}}{35 \, b^{2} d^{5} x} \]
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\[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\int \frac {x^{4} \left (a + b x^{2}\right )^{\frac {3}{2}}}{\sqrt {c + d x^{2}}}\, dx \]
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\[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\int { \frac {{\left (b x^{2} + a\right )}^{\frac {3}{2}} x^{4}}{\sqrt {d x^{2} + c}} \,d x } \]
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\[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\int { \frac {{\left (b x^{2} + a\right )}^{\frac {3}{2}} x^{4}}{\sqrt {d x^{2} + c}} \,d x } \]
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Timed out. \[ \int \frac {x^4 \left (a+b x^2\right )^{3/2}}{\sqrt {c+d x^2}} \, dx=\int \frac {x^4\,{\left (b\,x^2+a\right )}^{3/2}}{\sqrt {d\,x^2+c}} \,d x \]
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