Diketauhi fungsi f (x) = x + 3 dan g (x) = 2x2 -8 komposisi fungsi (go f) (x) =

gof x = 2(x+3)(x+3) -8
2(x^2+6x+9)-8
2x^2+12x+18-8
2x^2+12x+10

@pipit274
f (x) = x + 3
g (x) = 2x² -8
( g o f ) (x) = ??

Jawab :
(g o f) (x) = 2(x+3)² - 8
= 2 (x+3).(x+3) - 8
= 2 (x²+6x+9) - 8
= 2x² +12x + 18 - 8
= 2x² +12x + 10

Semoga membantu dan maaf kalau salah :)