Question

Jika f(x) = x kuadrat -3 dan (fog)(x) = x kuadrat + 2x - 2 maka g(x)...
tolong bantuan.nya ya???

Answer 1

F(x) = x²-3
(fog)(x) = x²+2x-2
f(g(x)) = x²+2x-2
(g(x))²-3 = x²+2x-2
(g(x))² = x²+2x-2+3
(g(x))² = x²+2x+1 
(g(x))² = (x+1)²  --> kedua ruas diakar
g(x) = x+1

semoga membantu ya :)