Different result in Integral

[Arno K]

(09-08-2016 09:13 PM)compsystems Wrote:  (1/3)*(2*x+1)^(1/2)*(2*x+1) -> (2*x*√(2*x+1)+√(2*x+1))/3

But

[Shift]+[()]+ (1/3)*(2*x+1)^(1/2)*(2*x+1) -> (2*x+1)^((1/2)+1)/3

but with the root-symbol that does not work.
Arno