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(Sqrt[1 + x^2]*(x + 2*x^3) - ArcSinh[x])/8


Integrate[x^2*Sqrt[1 + x^2], x] ==
(Sqrt[1 + x^2]*(x + 2*x^3) - ArcSinh[x])/8



           2           2
Integrate[x  Sqrt[1 + x ], x] == 

          2          3
Sqrt[1 + x ] (x + 2 x ) - ArcSinh[x]
------------------------------------
                 8

Time to compute: 0.04 second

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