Question

Suppose f(x)=x²+4 and g(x)=2x+1.
Find the value of f(-2)g(-2).

Answer 1

Answer: -24

Explanation:

I am assuming you want the value of (f × g)(-2)

`f(-2)=(-2)^2+4\\f(-2) = 4+4\\f(-2)=8`

`g(-2)=2(-2)+1\\g(-2)=-4+1\\g(-2)=-3`

8 × -3 = -24