Integrand size = 28, antiderivative size = 531 \[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=-\frac {2 e \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) \sqrt {f+g x} \sqrt {a+c x^2}}{105 c^2 g^2}+\frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}+\frac {2 \sqrt {-a} \left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \sqrt {f+g x} \sqrt {1+\frac {c x^2}{a}} E\left (\arcsin \left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )|-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{3/2} g^3 \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {c} f+\sqrt {-a} g}} \sqrt {a+c x^2}}-\frac {2 \sqrt {-a} e \left (c f^2+a g^2\right ) \left (25 a e^2 g^2-c \left (8 e^2 f^2-42 d e f g+105 d^2 g^2\right )\right ) \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {c} f+\sqrt {-a} g}} \sqrt {1+\frac {c x^2}{a}} \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right ),-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{5/2} g^3 \sqrt {f+g x} \sqrt {a+c x^2}} \]
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Time = 0.94 (sec) , antiderivative size = 527, normalized size of antiderivative = 0.99, number of steps used = 8, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {956, 1668, 858, 733, 435, 430} \[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=-\frac {2 \sqrt {-a} e \sqrt {\frac {c x^2}{a}+1} \left (a g^2+c f^2\right ) \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {-a} g+\sqrt {c} f}} \left (25 a e^2 g^2-c \left (105 d^2 g^2-42 d e f g+8 e^2 f^2\right )\right ) \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right ),-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{5/2} g^3 \sqrt {a+c x^2} \sqrt {f+g x}}+\frac {2 \sqrt {-a} \sqrt {\frac {c x^2}{a}+1} \sqrt {f+g x} \left (a e^2 g^2 (189 d g+19 e f)-c \left (105 d^3 g^3+105 d^2 e f g^2-42 d e^2 f^2 g+8 e^3 f^3\right )\right ) E\left (\arcsin \left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )|-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{3/2} g^3 \sqrt {a+c x^2} \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {-a} g+\sqrt {c} f}}}+\frac {2 e \sqrt {a+c x^2} \sqrt {f+g x} \left (-e^2 \left (\frac {25 a}{c}+\frac {7 f^2}{g^2}\right )+90 d^2-\frac {12 d e f}{g}\right )}{105 c}+\frac {2 e^2 \sqrt {a+c x^2} (f+g x)^{3/2} (11 d g+e f)}{35 c g^2}+\frac {2 e \sqrt {a+c x^2} (d+e x)^2 \sqrt {f+g x}}{7 c} \]
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Rule 430
Rule 435
Rule 733
Rule 858
Rule 956
Rule 1668
Rubi steps \begin{align*} \text {integral}& = \frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}-\frac {\int \frac {(d+e x) \left (-7 c d^2 f+a e (4 e f+d g)+\left (5 a e^2 g-c d (12 e f+7 d g)\right ) x-c e (e f+11 d g) x^2\right )}{\sqrt {f+g x} \sqrt {a+c x^2}} \, dx}{7 c} \\ & = \frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}-\frac {2 \int \frac {-\frac {1}{2} c g^2 \left (35 c d^3 f g-a e \left (3 e^2 f^2+53 d e f g+5 d^2 g^2\right )\right )+\frac {1}{2} c g \left (a e^2 g^2 (23 e f+63 d g)+c \left (2 e^3 f^3+22 d e^2 f^2 g-95 d^2 e f g^2-35 d^3 g^3\right )\right ) x+\frac {1}{2} c e g^2 \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) x^2}{\sqrt {f+g x} \sqrt {a+c x^2}} \, dx}{35 c^2 g^3} \\ & = -\frac {2 e \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) \sqrt {f+g x} \sqrt {a+c x^2}}{105 c^2 g^2}+\frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}-\frac {4 \int \frac {-\frac {1}{4} c g^4 \left (105 c^2 d^3 f g+25 a^2 e^3 g^2-a c e \left (2 e^2 f^2+147 d e f g+105 d^2 g^2\right )\right )+\frac {1}{4} c^2 g^3 \left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) x}{\sqrt {f+g x} \sqrt {a+c x^2}} \, dx}{105 c^3 g^5} \\ & = -\frac {2 e \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) \sqrt {f+g x} \sqrt {a+c x^2}}{105 c^2 g^2}+\frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}+\frac {\left (e \left (c f^2+a g^2\right ) \left (25 a e^2 g^2-c \left (8 e^2 f^2-42 d e f g+105 d^2 g^2\right )\right )\right ) \int \frac {1}{\sqrt {f+g x} \sqrt {a+c x^2}} \, dx}{105 c^2 g^3}-\frac {\left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \int \frac {\sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx}{105 c g^3} \\ & = -\frac {2 e \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) \sqrt {f+g x} \sqrt {a+c x^2}}{105 c^2 g^2}+\frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}-\frac {\left (2 a \left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \sqrt {f+g x} \sqrt {1+\frac {c x^2}{a}}\right ) \text {Subst}\left (\int \frac {\sqrt {1+\frac {2 a \sqrt {c} g x^2}{\sqrt {-a} \left (c f-\frac {a \sqrt {c} g}{\sqrt {-a}}\right )}}}{\sqrt {1-x^2}} \, dx,x,\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )}{105 \sqrt {-a} c^{3/2} g^3 \sqrt {\frac {c (f+g x)}{c f-\frac {a \sqrt {c} g}{\sqrt {-a}}}} \sqrt {a+c x^2}}+\frac {\left (2 a e \left (c f^2+a g^2\right ) \left (25 a e^2 g^2-c \left (8 e^2 f^2-42 d e f g+105 d^2 g^2\right )\right ) \sqrt {\frac {c (f+g x)}{c f-\frac {a \sqrt {c} g}{\sqrt {-a}}}} \sqrt {1+\frac {c x^2}{a}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1-x^2} \sqrt {1+\frac {2 a \sqrt {c} g x^2}{\sqrt {-a} \left (c f-\frac {a \sqrt {c} g}{\sqrt {-a}}\right )}}} \, dx,x,\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )}{105 \sqrt {-a} c^{5/2} g^3 \sqrt {f+g x} \sqrt {a+c x^2}} \\ & = -\frac {2 e \left (25 a e^2 g^2+c \left (7 e^2 f^2+12 d e f g-90 d^2 g^2\right )\right ) \sqrt {f+g x} \sqrt {a+c x^2}}{105 c^2 g^2}+\frac {2 e (d+e x)^2 \sqrt {f+g x} \sqrt {a+c x^2}}{7 c}+\frac {2 e^2 (e f+11 d g) (f+g x)^{3/2} \sqrt {a+c x^2}}{35 c g^2}+\frac {2 \sqrt {-a} \left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \sqrt {f+g x} \sqrt {1+\frac {c x^2}{a}} E\left (\sin ^{-1}\left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )|-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{3/2} g^3 \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {c} f+\sqrt {-a} g}} \sqrt {a+c x^2}}-\frac {2 \sqrt {-a} e \left (c f^2+a g^2\right ) \left (25 a e^2 g^2-c \left (8 e^2 f^2-42 d e f g+105 d^2 g^2\right )\right ) \sqrt {\frac {\sqrt {c} (f+g x)}{\sqrt {c} f+\sqrt {-a} g}} \sqrt {1+\frac {c x^2}{a}} F\left (\sin ^{-1}\left (\frac {\sqrt {1-\frac {\sqrt {c} x}{\sqrt {-a}}}}{\sqrt {2}}\right )|-\frac {2 a g}{\sqrt {-a} \sqrt {c} f-a g}\right )}{105 c^{5/2} g^3 \sqrt {f+g x} \sqrt {a+c x^2}} \\ \end{align*}
Result contains complex when optimal does not.
Time = 25.52 (sec) , antiderivative size = 777, normalized size of antiderivative = 1.46 \[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=\frac {\sqrt {f+g x} \left (\frac {2 \left (a+c x^2\right ) \left (-25 a e^3 g^2+c e \left (105 d^2 g^2+21 d e g (f+3 g x)+e^2 \left (-4 f^2+3 f g x+15 g^2 x^2\right )\right )\right )}{c^2 g^2}-\frac {2 \left (g^2 \sqrt {-f-\frac {i \sqrt {a} g}{\sqrt {c}}} \left (a e^2 g^2 (19 e f+189 d g)-c \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \left (a+c x^2\right )-\sqrt {c} \left (i a \sqrt {c} e^2 f g^2 (19 e f+189 d g)-a^{3/2} e^2 g^3 (19 e f+189 d g)-i c^{3/2} f \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )+\sqrt {a} c g \left (8 e^3 f^3-42 d e^2 f^2 g+105 d^2 e f g^2+105 d^3 g^3\right )\right ) \sqrt {\frac {g \left (\frac {i \sqrt {a}}{\sqrt {c}}+x\right )}{f+g x}} \sqrt {-\frac {\frac {i \sqrt {a} g}{\sqrt {c}}-g x}{f+g x}} (f+g x)^{3/2} E\left (i \text {arcsinh}\left (\frac {\sqrt {-f-\frac {i \sqrt {a} g}{\sqrt {c}}}}{\sqrt {f+g x}}\right )|\frac {\sqrt {c} f-i \sqrt {a} g}{\sqrt {c} f+i \sqrt {a} g}\right )-g \left (\sqrt {c} f+i \sqrt {a} g\right ) \left (105 i c^{3/2} d^3 g^2+25 a^{3/2} e^3 g^2+3 i a \sqrt {c} e^2 g (2 e f-63 d g)+\sqrt {a} c e \left (-8 e^2 f^2+42 d e f g-105 d^2 g^2\right )\right ) \sqrt {\frac {g \left (\frac {i \sqrt {a}}{\sqrt {c}}+x\right )}{f+g x}} \sqrt {-\frac {\frac {i \sqrt {a} g}{\sqrt {c}}-g x}{f+g x}} (f+g x)^{3/2} \operatorname {EllipticF}\left (i \text {arcsinh}\left (\frac {\sqrt {-f-\frac {i \sqrt {a} g}{\sqrt {c}}}}{\sqrt {f+g x}}\right ),\frac {\sqrt {c} f-i \sqrt {a} g}{\sqrt {c} f+i \sqrt {a} g}\right )\right )}{c^2 g^4 \sqrt {-f-\frac {i \sqrt {a} g}{\sqrt {c}}} (f+g x)}\right )}{105 \sqrt {a+c x^2}} \]
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Time = 3.37 (sec) , antiderivative size = 882, normalized size of antiderivative = 1.66
method | result | size |
elliptic | \(\frac {\sqrt {\left (g x +f \right ) \left (c \,x^{2}+a \right )}\, \left (\frac {2 e^{3} x^{2} \sqrt {c g \,x^{3}+c f \,x^{2}+a g x +f a}}{7 c}+\frac {2 \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right ) x \sqrt {c g \,x^{3}+c f \,x^{2}+a g x +f a}}{5 c g}+\frac {2 \left (3 d^{2} e g +3 d \,e^{2} f -\frac {4 f \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right )}{5 g}-\frac {5 g a \,e^{3}}{7 c}\right ) \sqrt {c g \,x^{3}+c f \,x^{2}+a g x +f a}}{3 c g}+\frac {2 \left (d^{3} f -\frac {2 a f \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right )}{5 c g}-\frac {a \left (3 d^{2} e g +3 d \,e^{2} f -\frac {4 f \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right )}{5 g}-\frac {5 g a \,e^{3}}{7 c}\right )}{3 c}\right ) \left (\frac {f}{g}-\frac {\sqrt {-a c}}{c}\right ) \sqrt {\frac {x +\frac {f}{g}}{\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\, \sqrt {\frac {x -\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\, \sqrt {\frac {x +\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}+\frac {\sqrt {-a c}}{c}}}\, F\left (\sqrt {\frac {x +\frac {f}{g}}{\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}, \sqrt {\frac {-\frac {f}{g}+\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\right )}{\sqrt {c g \,x^{3}+c f \,x^{2}+a g x +f a}}+\frac {2 \left (d^{3} g +3 d^{2} e f -\frac {4 a f \,e^{3}}{7 c}-\frac {3 a \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right )}{5 c}-\frac {2 f \left (3 d^{2} e g +3 d \,e^{2} f -\frac {4 f \left (3 d \,e^{2} g +\frac {1}{7} e^{3} f \right )}{5 g}-\frac {5 g a \,e^{3}}{7 c}\right )}{3 g}\right ) \left (\frac {f}{g}-\frac {\sqrt {-a c}}{c}\right ) \sqrt {\frac {x +\frac {f}{g}}{\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\, \sqrt {\frac {x -\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\, \sqrt {\frac {x +\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}+\frac {\sqrt {-a c}}{c}}}\, \left (\left (-\frac {f}{g}-\frac {\sqrt {-a c}}{c}\right ) E\left (\sqrt {\frac {x +\frac {f}{g}}{\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}, \sqrt {\frac {-\frac {f}{g}+\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\right )+\frac {\sqrt {-a c}\, F\left (\sqrt {\frac {x +\frac {f}{g}}{\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}, \sqrt {\frac {-\frac {f}{g}+\frac {\sqrt {-a c}}{c}}{-\frac {f}{g}-\frac {\sqrt {-a c}}{c}}}\right )}{c}\right )}{\sqrt {c g \,x^{3}+c f \,x^{2}+a g x +f a}}\right )}{\sqrt {g x +f}\, \sqrt {c \,x^{2}+a}}\) | \(882\) |
risch | \(\text {Expression too large to display}\) | \(1610\) |
default | \(\text {Expression too large to display}\) | \(3924\) |
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Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 0.11 (sec) , antiderivative size = 445, normalized size of antiderivative = 0.84 \[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=-\frac {2 \, {\left ({\left (8 \, c^{2} e^{3} f^{4} - 42 \, c^{2} d e^{2} f^{3} g + {\left (105 \, c^{2} d^{2} e - 13 \, a c e^{3}\right )} f^{2} g^{2} - 42 \, {\left (5 \, c^{2} d^{3} - 6 \, a c d e^{2}\right )} f g^{3} + 15 \, {\left (21 \, a c d^{2} e - 5 \, a^{2} e^{3}\right )} g^{4}\right )} \sqrt {c g} {\rm weierstrassPInverse}\left (\frac {4 \, {\left (c f^{2} - 3 \, a g^{2}\right )}}{3 \, c g^{2}}, -\frac {8 \, {\left (c f^{3} + 9 \, a f g^{2}\right )}}{27 \, c g^{3}}, \frac {3 \, g x + f}{3 \, g}\right ) + 3 \, {\left (8 \, c^{2} e^{3} f^{3} g - 42 \, c^{2} d e^{2} f^{2} g^{2} + {\left (105 \, c^{2} d^{2} e - 19 \, a c e^{3}\right )} f g^{3} + 21 \, {\left (5 \, c^{2} d^{3} - 9 \, a c d e^{2}\right )} g^{4}\right )} \sqrt {c g} {\rm weierstrassZeta}\left (\frac {4 \, {\left (c f^{2} - 3 \, a g^{2}\right )}}{3 \, c g^{2}}, -\frac {8 \, {\left (c f^{3} + 9 \, a f g^{2}\right )}}{27 \, c g^{3}}, {\rm weierstrassPInverse}\left (\frac {4 \, {\left (c f^{2} - 3 \, a g^{2}\right )}}{3 \, c g^{2}}, -\frac {8 \, {\left (c f^{3} + 9 \, a f g^{2}\right )}}{27 \, c g^{3}}, \frac {3 \, g x + f}{3 \, g}\right )\right ) - 3 \, {\left (15 \, c^{2} e^{3} g^{4} x^{2} - 4 \, c^{2} e^{3} f^{2} g^{2} + 21 \, c^{2} d e^{2} f g^{3} + 5 \, {\left (21 \, c^{2} d^{2} e - 5 \, a c e^{3}\right )} g^{4} + 3 \, {\left (c^{2} e^{3} f g^{3} + 21 \, c^{2} d e^{2} g^{4}\right )} x\right )} \sqrt {c x^{2} + a} \sqrt {g x + f}\right )}}{315 \, c^{3} g^{4}} \]
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\[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=\int \frac {\left (d + e x\right )^{3} \sqrt {f + g x}}{\sqrt {a + c x^{2}}}\, dx \]
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\[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=\int { \frac {{\left (e x + d\right )}^{3} \sqrt {g x + f}}{\sqrt {c x^{2} + a}} \,d x } \]
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\[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=\int { \frac {{\left (e x + d\right )}^{3} \sqrt {g x + f}}{\sqrt {c x^{2} + a}} \,d x } \]
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Timed out. \[ \int \frac {(d+e x)^3 \sqrt {f+g x}}{\sqrt {a+c x^2}} \, dx=\int \frac {\sqrt {f+g\,x}\,{\left (d+e\,x\right )}^3}{\sqrt {c\,x^2+a}} \,d x \]
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