Question

F(x) = 3x + 9, g(x) = 5x2 Find (f + g)(x).

Answer 1

Answer:

$5x^2 + 3x +9$

Step-by-step explanation:

$f(x) = 3x + 9\\g(x) = 5x^2$

$(f+g)(x)\\f(x) + g(x)$

$3x+9 + 5x^2$

$5x^2 + 3x +9$

Answer 2

F(x) = 3x + 9
g(x) = 5x²

(f + g)(x) = (3x + 9) + 5x²
(f + g)(x) = 3x + 9 + 5x²
(f + g)(x) = 5x² + 3x + 9