Question

What is (f.g)(x)?

f(x)=x^3 - 4x + 2
g(x)=x^2 + 2

Answer 1

f(g(x)) =

`{x}^(6) + 6 {x}^(4) + 8x^(2) + 2`

Explanation:

put g(x) instead of any x in f(x)

`{(x ^(2) + 2) }^(3) - 4( {x}^(2) + 2) + 2`