Question

Please Help!!
f(x) = 3x + 9, g(x) = 5x^2
Find (f + g) (x)

Answer 1

5x² + 3x + 9

Explanation:

(f + g)(x)

= f(x) + g(x)

= 3x + 9 + 5x²

= 5x² + 3x + 9 ← in standard form

Answer 2

`(f + g)(x) = (3x + 9) + (5 {x}^(2) ) \\ = 5 {x}^(2) + 3x + 9`

I hope I helped you^_^