Question

If `f(x) = x^2- 2`, how do you find expressions for f(x-2)?

Answer 1

Where ever in the original equation you find `x` you would write `(x-2)`

Explanation:

`f(x) = x^2 - 2 -> f(x-2)=(x-2)^2 -2`
`color(white)("XXXXXXXXXXXXXXXX")=x^2-4x`