PLEASE HELP ME!?!? ANSWER. MATEMATIKA KELAS 10

3) f(x) = 6x - 9
g(x) = -3x + 12
(fog) (x) = f(g(x))
= f (-3x + 12)
= 6 (-3x + 12) - 9
= -18x + 72 - 9
= -18x + 63
(fog) (-2) = -18(-2) + 63
= 36 + 63
= 99
maaf klau salah