Question

F(×) = 2× + 4
fog (x) = 4× kuadrat + 2
maka g(2) =......

Answer 1

4xkuadrat +2 = 2(gx)+4
trs itung sendiri
2xkuadrat-1 = gx
masukin 2 nya ke x
ketemu 7 hasilnya

Answer 2

(fog)(x)=f(g(x))=4x" +2
=2.g(x)+4=4x"+2
=2.g(x)=4x"-2 => dibagi 2
g(x) =2x"-1
g(2)=2(2pangkat 2)-1
g(2)= 2.4-1=7