Problem 4: Write A C++ Program That Inputs A Positive Double Numbers From The User. The Program Then Computes And Prints The Value Of The Following Expression: 1 Z = X+1+VX+1 + 2x + 1 + X2 + Sample Session: (Values In Red Are Entered By The User) Enter The Value Forx: 1.5 Z = 0.118303

could someone clear this out please, thanks!