I am very confused on how to do this can someone please tell me how?

Answer:
1. 4
2. -4
Step-by-step explanation:
You plug in the number given in the parentheses into the function(s) as x
for #1:
since its f(4)
you would do the following -> f(4) = 2(4) - 4 hence the answer of 4.
for #2:
since its g(2)
you would do the following -> g(2) = 2^2 - 4(2) hence the answer of -4
Answer:
Step-by-step explanation:the value for f is f times x the value for g is g times x and x =x