Question

Let f(x) = 2x2 and g(x) = x2-1. Then f(g(2)) =

Answer 1

18

Explanation:

Evaluate g(2), then substitute the value obtained into f(x)

g(2) = 2² - 1 = 4 - 1 = 3 , then

f(3) = 2(3)² = 2(9) = 18