Diketahui f(x) =5x +2 dan g : r -> r memenuhi (fog)(x) = 8x-3. maka g(4) =...

(f o g)(x) = f(g(x)) = 8x - 3
5g(x) + 2 = 8x - 3
5g(x) = 8x - 5
g(x) = 8/5 x - 1 = 1,6x - 1
g(4) = 1,6(4) - 1
= 6,3