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(Log[-9 + Sqrt[65] - 2*x] - Log[9 + Sqrt[65] + 2*x])/Sqrt[65]


Integrate[1/(x^2 + 9*x + 4), x] ==
(Log[-9 + Sqrt[65] - 2*x] - Log[9 + Sqrt[65] + 2*x])/ Sqrt[65]



               1
Integrate[------------, x] == 
           2
          x  + 9 x + 4

Log[-9 + Sqrt[65] - 2 x] - Log[9 + Sqrt[65] + 2 x]
--------------------------------------------------
                     Sqrt[65]

Time to compute: 0.02 second

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