Integrand size = 27, antiderivative size = 54 \[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\frac {2 \arctan \left (\frac {\sqrt {3+a} x \sqrt {1+3 x-a x^2+x^3}}{-1-3 x+a x^2-x^3}\right )}{\sqrt {3+a}} \]
[Out]
Result contains higher order function than in optimal. Order 4 vs. order 3 in optimal.
Time = 122.54 (sec) , antiderivative size = 5395, normalized size of antiderivative = 99.91, number of steps used = 13, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.407, Rules used = {6874, 2092, 2091, 732, 430, 2106, 2105, 948, 175, 552, 551} \[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\frac {\sqrt [3]{2} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}} \sqrt {\frac {2 \sqrt [3]{2} a^2-2 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} a+6 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} x+\left (-4 a^3+54 a-6 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+54\right )^{2/3}-18 \sqrt [3]{2}}{6 a^2+3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}}-54}} \sqrt {-\frac {\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}}+2 \left (9-a^2\right )+18 \left (x-\frac {a}{3}\right )^2+\frac {\sqrt [3]{2} \left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right ) (3 x-a)}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}}{\frac {\left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right )^2}{18 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}}-\frac {2}{9} \left (\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}}+2 \left (9-a^2\right )+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}\right )}} \operatorname {EllipticF}\left (\arcsin \left (\frac {\sqrt {\frac {-2 \sqrt [3]{2} a^2-4 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} a+12 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} x-\left (-4 a^3+54 a-6 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+54\right )^{2/3}+\sqrt {6} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}}+18 \sqrt [3]{2}}{\sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}}}}}{2^{3/4} \sqrt [4]{3}}\right ),\frac {2 \sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}}{-6 a^2-3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+54}\right )}{3 \sqrt {3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} \sqrt {x^3-a x^2+3 x+1}}-\frac {6 \sqrt [6]{2} \sqrt {3} \sqrt {6 a^2+3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}-54} \sqrt {1-\frac {2 \left (2 a^2-2^{2/3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} (a-3 x)+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-18\right )}{6 a^2+3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}-54}} \sqrt {1-\frac {2 \left (2 a^2-2^{2/3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} (a-3 x)+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-18\right )}{6 a^2+3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}+\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}-54}} \sqrt {\frac {\sqrt [3]{2} \left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right )}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}-4 (a-3 x)-\frac {\sqrt {6} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}}}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27}}} \sqrt {\frac {\sqrt [3]{2} \left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right )}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}-4 (a-3 x)+\frac {\sqrt {6} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27\right )^{2/3}-162\ 2^{2/3}}}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27}}} \sqrt {-\frac {a}{3}+\frac {2 a^2+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-18}{3\ 2^{2/3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}+x} \operatorname {EllipticPi}\left (\frac {-6 a^2-3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+54}{2^{2/3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27} \left (2 a+\frac {\sqrt [3]{2} \left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right )}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}+6\right )},\arcsin \left (\frac {2^{5/6} \sqrt {3} \sqrt [6]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27} \sqrt {-\frac {a}{3}+\frac {2 a^2+\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-18}{3\ 2^{2/3} \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}+x}}{\sqrt {6 a^2+3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}-54}}\right ),\frac {-6 a^2-3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+54}{-6 a^2-3 \sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+\sqrt [6]{2} \sqrt {3} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+54}\right )}{\sqrt [6]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27} \left (2 a+\frac {\sqrt [3]{2} \left (-2 a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}+18\right )}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27}}+6\right ) \sqrt {\frac {-2 \sqrt [3]{2} a^2-4 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} (a-3 x)-\left (-4 a^3+54 a-6 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+54\right )^{2/3}-\sqrt {6} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+18 \sqrt [3]{2}}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27}}} \sqrt {\frac {-2 \sqrt [3]{2} a^2-4 \sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27} (a-3 x)-\left (-4 a^3+54 a-6 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+54\right )^{2/3}+\sqrt {6} \sqrt {-2 2^{2/3} a^4+4 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3} a^2+36\ 2^{2/3} a^2-\sqrt [3]{2} \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{4/3}-36 \left (-2 a^3+27 a-3 \sqrt {3} \sqrt {(15-4 a) (a+3)^2}+27\right )^{2/3}-162\ 2^{2/3}}+18 \sqrt [3]{2}}{\sqrt [3]{-2 a^3+27 a-3 \sqrt {3} \sqrt {-(a+3)^2 (4 a-15)}+27}}} \sqrt {x^3-a x^2+3 x+1}} \]
[In]
[Out]
Rule 175
Rule 430
Rule 551
Rule 552
Rule 732
Rule 948
Rule 2091
Rule 2092
Rule 2105
Rule 2106
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {1}{\sqrt {1+3 x-a x^2+x^3}}-\frac {3}{(1+x) \sqrt {1+3 x-a x^2+x^3}}\right ) \, dx \\ & = -\left (3 \int \frac {1}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx\right )+\int \frac {1}{\sqrt {1+3 x-a x^2+x^3}} \, dx \\ & = -\left (3 \text {Subst}\left (\int \frac {1}{\left (\frac {3+a}{3}+x\right ) \sqrt {\frac {1}{27} \left (27+27 a-2 a^3\right )+\frac {1}{3} \left (9-a^2\right ) x+x^3}} \, dx,x,-\frac {a}{3}+x\right )\right )+\text {Subst}\left (\int \frac {1}{\sqrt {\frac {1}{27} \left (27+27 a-2 a^3\right )+\frac {1}{3} \left (9-a^2\right ) x+x^3}} \, dx,x,-\frac {a}{3}+x\right ) \\ & = \frac {\left (\sqrt {-\frac {a}{3}+\frac {-18+2 a^2+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x} \sqrt {2 \left (9-a^2\right )+\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}+18 \left (-\frac {a}{3}+x\right )^2+\frac {\sqrt [3]{2} \left (18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right ) (-a+3 x)}{\sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {-\frac {18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x} \sqrt {\frac {1}{18} \left (2 \left (9-a^2\right )+\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right )+\frac {\left (18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right ) x}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x^2}} \, dx,x,-\frac {a}{3}+x\right )}{3 \sqrt {2} \sqrt {1+3 x-a x^2+x^3}}-\frac {\left (\sqrt {-\frac {a}{3}+\frac {-18+2 a^2+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x} \sqrt {2 \left (9-a^2\right )+\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}+18 \left (-\frac {a}{3}+x\right )^2+\frac {\sqrt [3]{2} \left (18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right ) (-a+3 x)}{\sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}}\right ) \text {Subst}\left (\int \frac {1}{\left (\frac {3+a}{3}+x\right ) \sqrt {-\frac {18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x} \sqrt {\frac {1}{18} \left (2 \left (9-a^2\right )+\frac {2\ 2^{2/3} \left (9-a^2\right )^2}{\left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}}+\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right )+\frac {\left (18-2 a^2-\sqrt [3]{2} \left (27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}\right )^{2/3}\right ) x}{3\ 2^{2/3} \sqrt [3]{27+27 a-2 a^3-3 \sqrt {3} \sqrt {(15-4 a) (3+a)^2}}}+x^2}} \, dx,x,-\frac {a}{3}+x\right )}{\sqrt {2} \sqrt {1+3 x-a x^2+x^3}} \\ & = \text {Too large to display} \\ \end{align*}
Time = 0.09 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.69 \[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=-\frac {2 \arctan \left (\frac {\sqrt {3+a} x}{\sqrt {1+3 x-a x^2+x^3}}\right )}{\sqrt {3+a}} \]
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Time = 9.16 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.63
method | result | size |
default | \(\frac {2 \arctan \left (\frac {\sqrt {-a \,x^{2}+x^{3}+3 x +1}}{x \sqrt {3+a}}\right )}{\sqrt {3+a}}\) | \(34\) |
pseudoelliptic | \(\frac {2 \arctan \left (\frac {\sqrt {-a \,x^{2}+x^{3}+3 x +1}}{x \sqrt {3+a}}\right )}{\sqrt {3+a}}\) | \(34\) |
elliptic | \(\text {Expression too large to display}\) | \(3008\) |
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Time = 0.30 (sec) , antiderivative size = 234, normalized size of antiderivative = 4.33 \[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\left [-\frac {\sqrt {-a - 3} \log \left (-\frac {2 \, {\left (4 \, a + 9\right )} x^{5} - x^{6} - {\left (8 \, a^{2} + 24 \, a + 15\right )} x^{4} + 4 \, {\left (6 \, a + 13\right )} x^{3} + {\left (8 \, a + 9\right )} x^{2} - 4 \, {\left ({\left (2 \, a + 3\right )} x^{3} - x^{4} - 3 \, x^{2} - x\right )} \sqrt {-a x^{2} + x^{3} + 3 \, x + 1} \sqrt {-a - 3} - 6 \, x - 1}{x^{6} + 6 \, x^{5} + 15 \, x^{4} + 20 \, x^{3} + 15 \, x^{2} + 6 \, x + 1}\right )}{2 \, {\left (a + 3\right )}}, \frac {\arctan \left (-\frac {{\left ({\left (2 \, a + 3\right )} x^{2} - x^{3} - 3 \, x - 1\right )} \sqrt {-a x^{2} + x^{3} + 3 \, x + 1} \sqrt {a + 3}}{2 \, {\left ({\left (a + 3\right )} x^{4} - {\left (a^{2} + 3 \, a\right )} x^{3} + 3 \, {\left (a + 3\right )} x^{2} + {\left (a + 3\right )} x\right )}}\right )}{\sqrt {a + 3}}\right ] \]
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\[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\int \frac {x - 2}{\left (x + 1\right ) \sqrt {- a x^{2} + x^{3} + 3 x + 1}}\, dx \]
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\[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\int { \frac {x - 2}{\sqrt {-a x^{2} + x^{3} + 3 \, x + 1} {\left (x + 1\right )}} \,d x } \]
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\[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\int { \frac {x - 2}{\sqrt {-a x^{2} + x^{3} + 3 \, x + 1} {\left (x + 1\right )}} \,d x } \]
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Timed out. \[ \int \frac {-2+x}{(1+x) \sqrt {1+3 x-a x^2+x^3}} \, dx=\int \frac {x-2}{\left (x+1\right )\,\sqrt {x^3-a\,x^2+3\,x+1}} \,d x \]
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