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-(E^(3*x)*((13 - 30*x + 25*x^2)*Cos[x] + (-9 + 40*x - 75*x^2)*Sin[x]))/250


Integrate[E^(3*x)*x^2*Sin[x], x] ==
-(E^(3*x)*((13 - 30*x + 25*x^2)*Cos[x] + (-9 + 40*x - 75*x^2)*Sin[x]))/250



           3 x  2
Integrate[E    x  Sin[x], x] == 

   3 x                   2
-(E    ((13 - 30 x + 25 x ) Cos[x] + 
 
                        2
       (-9 + 40 x - 75 x ) Sin[x])) / 250

Time to compute: 0.09 second

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