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ArcTan[(5 + x)/Sqrt[5]]/Sqrt[5]

Integrate[1/(30 + 10*x + x^2), x] ==
ArcTan[(5 + x)/Sqrt[5]]/Sqrt[5] 

                1
Integrate[--------------, x] == 
                       2
          30 + 10 x + x

        5 + x
ArcTan[-------]
       Sqrt[5]
---------------
    Sqrt[5]
Time to compute: 0.02 second
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