# Solve definite integrals?

GROUPS:
 Hello, Please, I am trying to solve definite integral and its work but the results not simplified. F = Integrate[(x^4*Exp[x])/(Exp[x] - 1)^2, {x, 0, 44}] This is the result (1/(15 (-1 + E^44)))4 (-\[Pi]^4 + E^44 (\[Pi]^4 + 30 (-1874048 + 42592 Log[-1 + E^44] - 2904 PolyLog[2, 1/E^44] - 132 PolyLog[3, 1/E^44] - 3 PolyLog[4, 1/E^44])) + 30 (-42592 Log[-1 + E^44] + 3 (468512 + 968 PolyLog[2, 1/E^44] + 44 PolyLog[3, 1/E^44] + PolyLog[4, 1/E^44]))) 
 S M Blinder 1 Vote A simplification of a definite integral would be a numerical result! In[214]:= F = N[Integrate[(x^4*Exp[x])/(Exp[x] - 1)^2, {x, 0, 44}]] Out[214]= 25.9758