Question

Tolong bantu jawab sama penyelesaiannya
g(x) = x + 2(fog) (x) = x² + 1, maka f(x)...

Answer 1

F(x)=(x-2)²+1 f(x)=x²-4x+5

Answer 2

(fog) (x) =x² + 1
g(x)=x+2
ditanya:f(x)
jawab:
(fog) (x) =x² + 1
f(g(x)=x² + 1
f(x+2)=x² + 1

misal: x+2 = a => x=a-2
f(a)=(a-2)² + 1
f(a)= a² -1a + 4 +1
f(a)=a² -1a +5
f(x)=a² -1x +5