Let f (x) = 3x + 4 and g (x) = - 2x2

Find f (g (x))

f (g (x)) = - 6x²+4

Step-by-step explanation:

Given:

f (x) = 3x + 4 and g (x) = - 2x²

to find f (g (x)) we take the expression for g (x) and we substitute it into f (x) in place of x

Hence f (g (x))

= 3[g (x) ] + 4

= 3[-2x²] + 4

= - 6x²+4