What is h(f(-2))h(f(2)) given f(x)=x^2f(x)=x2 and h(x)=x+4h(x)=x+4?

1 Answer
Dec 28, 2016

h(f(-2)) = 8h(f(2))=8

Explanation:

To solve color(blue)(h(color(red)(f(-2))))h(f(2)) we can first solve the function color(red)(f(-2))f(2)

color(red)(f(-2)) = (-2)^2 = 4f(2)=(2)2=4

color(blue)(h(color(red)(f(-2))))h(f(2)) now becomes color(blue)(h(color(red)(4)))h(4)

color(blue)(h(color(red)(4))) = 4 + 4 = 8h(4)=4+4=8