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Integrate[(a + b*x + c*x^2)^(-1 - n), x] ==
(2^(-2 - n)*(-b + Sqrt[b^2 - 4*a*c] - 2*c*x)*
((b + Sqrt[b^2 - 4*a*c] + 2*c*x)/Sqrt[b^2 - 4*a*c])^
(1 + n)*(a + x*(b + c*x))^(-1 - n)*
Hypergeometric2F1[-n, 1 + n, 1 - n,
(-b + Sqrt[b^2 - 4*a*c] - 2*c*x)/
(2*Sqrt[b^2 - 4*a*c])])/(c*n)
2 -1 - n Integrate[(a + b x + c x ) , x] ==
-2 - n 2
(2 (-b + Sqrt[b - 4 a c] - 2 c x)
2
b + Sqrt[b - 4 a c] + 2 c x 1 + n
(----------------------------)
2
Sqrt[b - 4 a c]
-1 - n
(a + x (b + c x))
Hypergeometric2F1[-n, 1 + n, 1 - n,
2
-b + Sqrt[b - 4 a c] - 2 c x
-----------------------------]) / (c n)
2
2 Sqrt[b - 4 a c]
Time to compute: 0.46 second
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