Answer: The required expression for f(x+1) is 2x-3.
Step-by-step explanation: We are given the following function :

We are to find the expression for f(x+1).
To find the expression for f(x+1), we need to substitute x+1 in place of x in (i).
So, we get from expression (i) that

Thus, the required expression for f(x+1) is 2x-3.