The functions of f(x), g(x), and h(x) are defined below:

Question

f(x) = -2x

g(x) = 2x + 5

h(x) = x^2 + 3x - 10

Calculate the indicated function values.

1. f(a+b)

2. f(g(x))

Answer 1

For 1. , just replace the x with a+b

2.
f(g(x))
= f(2x+5)
= -2(2x+5)

Answer 2

Are they Invers or not