diketahui (f°g)(x) =x²-2x+3 dan g(x) =x-3 tentukan rumus f(x)

(f o g)(x) = f(g(x)) = x² - 2x + 3
f(x - 3) = x² - 2x + 3
y = x - 3
x = y + 3
f(x) = (x + 3)² - 2(x + 3) + 3
= x² + 6x + 9 - 2x - 6 + 3
= x² + 4x + 6