Diketahaui fungsi f(x) = x²-5x+1 dan g(x) = x+5 komposisi fungsi (f o g) (x)

f(x) = x²-5x+1
g(x) = x+5

(fog)(x) = f(g(x))
(fog)(x) = (g(x))²-5(g(x))+1
(fog)(x) = ((x+5)² -5(x+5)+1)
(fog)(x) = (x²+10x+25 -5x-25+1)
(fog)(x) = x²+10x-5x+25-25+1
(fog)(x) = x²+5x+1

semoga membantu