kak bantu dong .. beserta caranya

(fogoh)(x)
= f(g(h(x)))
= f(g(3x))
= f(2(3x)+3)
= f(6x+3)
= (6x+3)^2 - 1
= 36x^2 + 36x + 9 -1
= 36x^2 + 36x + 8

Jawabannya B