diket= f(x) = xpangkat 2 -3x+1, g(x) = x-3, ditanya (f+g) (x), (g-f) (x)

f(x) = x² - 3x + 1
g(x) = x - 3
(f+g) (x) = ...?
(g-f) (x) = ...?
(f+g) (x) = [(x²-3x+1)+(x-3)]
= x²-3x+x+1-3
= x²-2x-2

(g-f) (x) = [(x-3)-(x²-3x+1)]
= -x²+x+3x-3-1
= -x²+4x-4

Semoga membantu..