Diketahui fog(x) =7x - 4 ; g(x) = x - 5 maka f (x) =

fog(x)=7x-4
gof (x)= x-5
dit: f(x)
fog(x) = f g(x)
= 7(x-5)-4
= 7x-35-4
=7x-39
Maka fog(x) = 7x-39