Diketahui : f(x)= x²-2+1 g(x)= x+2 Tentukan nilai (f•g) (1)

f•g = f(x+2)
f•g = (x+2)^2 +2-1
f•g = x^2 + 4x + 4 +2 -1
f•g = x^2 +4x + 5
f•g(1) = 1.1 + 4.1 + 5
f•g (1)= 10
semoga bermanfaat

diketahui f(x) = x^2-2x+1
g(x) = x+2

f(g(x) = (x+2)^2 - 2(x+2) + 1
= x^2 + 4x + 4 - 2x -4 +1
= x^2 + 2x + 1
f(g(1) = (1)^2 + 2(1) + 1
= 1 +2 +1
= 4