1. ## Fuction help

if $f(x-1)=x+2$, the $f(x^2-1)=?$

How do I solve it?

2. Hi shrrikesh

f(x-1) = x + 2
f(x-1) = (x-1) + 3 ------> f(x) = .....

Then, f(x^2 - 1) = .....

3. f(x)=???

Well. I've never done this type of problem in my school.

4. Hi shrrikesh

f(x-1) = (x-1) + 3, let : x-1 = a

f(a) = a + 3. It means that f(x) = x + 3