Question

9

Answer 1

you can do this

Answer 2

show us your attempt for once

Answer 3

f(g(x)) let x=g(x) in the function f
so if you have f(g(2)) you let x=g(2) in the function f
so substitute 2 into the function g
then substitute that value into f

Answer 4

for example
f(g(3)) would be
g(3)=-16
f(-16)=-8

Answer 5

Find g(2) first...

g(x) = x2 - 6x - 7.

g(2) = 4-12-7 = -15

f(-15) = -15 + 8 = -7