Question

help please

Answer 1

@FortyTheRapper

Answer 2

@Zeronknight

Answer 3

Basically it's saying f(2z) = (2z)^2 - 3(2z)

Answer 4

The problem says that f(x) = something and asks you what f(2z) is.
What did the problem do? it replaced x with 2z
so you do the same thing, replacing every x you see with a 2z
So you get this:
\[(2z)^2-3(2z)\]
Which can be simplified to this:\[4z^2-6z\]

Answer 5

thank you for your help