Question

What’s the answer no work needed
Given f (x) = 5x2 and g(x) = 2x + 3, find f(g(-4))

Answer 1

125

Explanation:

Given

f(x) = 5x²

g(x) = 2x + 3

Now

g(-4) = 2 * (- 4) + 3

= - 8 + 3

= - 5

Also

f(g(-4)) = f( -5)

= 5 * ( -5)²

= 5 * 25

= 125