Diketahui fungsi f (x)=2x°2-5x-1 dan g (x)= x+2 komposisi fungsi f°g (x)

f(x) = 2x² - 5x - 1
g(x) = x + 2

Maka,
f o g(x) = f(g(x)) = f(x+2)

f o g(x) = 2(x + 2)² - 5(x + 2) - 1

f o g(x) = 2x² + 8x + 8 - 5x - 10 - 1

f o g(x) = 2x² + 3x - 3

Semoga bermanfaat yaaa..