f(x)=4x+2 , g(x)= x-3 . tentukan hasil ( g o f)(2)

f(x) = 4x+2
g(x) = x-3
g(f(x)) = (4x+2) - 3 = 4x-1
x = 2 maka 4(2)-1 = 7

langsung aja y

(gof)(x) = g{f(x)}

= f(x) - 3

= 4x + 2 - 3

= 4x - 1

maka
(gof)(2) = 4(2) - 1 = 8-1 = 7

semoga berguna +_+