jika g(x) = x - 3 dan (f•g)(x) = x² - 4, maka f(x - 2) =.....

(f•g)(x) = x² - 4
f (g(x)) = x² - 4
f ( x - 3 ) = x² - 4
f = (x - 3)² - 4
= x² - 6x + 9 -4
= x² - 6x + 5

f(x) = x² - 6x + 5
f(x - 2) = (x - 2)² - 6(x - 2) + 5
= ( x² - 4x + 4 ) - 6x + 12 + 5
= x² - 10x + 21

#cmiiw