Question

I don’t know what to do please help

Answer 1

If f(x)=x^2-4 and x=2
Then f(2)=2^2-4.
= 4-4
=0
Don’t write this in answer just to explain:the value of x is 2 so in the eq
X^2-4 so we write 2 where the x is
= 2^2-4 ...now solve it as above

Answer 2

f(2)=0

Explanation:

You plug in 2 for any X's in the equation

f(2)=2^2-4