diketahui f(x) =√4x+2 dan g(x)= 2x²-2, maka (g o f ) (x) =

jawab

f(x) = √(4x + 2)
g(x) =  2x² - 2

g o f (x) = g{ f(x) }
= g{ √(4x+2) }
= 2 (√(4x +2)}² - 2
= 2 (4x +2) - 2
= 8x + 4 - 2
= 8x + 2