diketahui fungsi f(x)= 3x2 + 2x - 1 dan g(x) = 3(3x-4). tentukan hasil fungsi (f+g)(x)

f(x)= 3x^2 + 2x - 1
g(x) = 3(3x-4)
(f+g)(x) = f(x) + g(x)
(f+g)(x) = 3x^2 + 2x - 1 + (3(3x-4))
(f+g)(x) = 3x^2 + 2x - 1 + 9x - 12
(f+g)(x) = 3x^2 + 11x - 13

Fungsi Aljabar

(f+g)(x)
= f(x) + g(x)
= [tex] {3x}^{2} + 2x + - 1 \: + 9x - 12 \\ = {3x}^{2} + 11x - 13[/tex]