diketahui fungsi f(x) = xkuadrat+5x-15 dan fungsi g(x)=x+2. fungsi komposisi (fog) (x) =

f(x) = x² + 5x - 15
g(x) = x + 2

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

= g(x)² + 5g(x) - 15
= (x + 2)² + 5(x + 2) - 15
= x² + 4x + 4 + 5x + 10 - 15
= x² + 9x - 1

semoga berguna +_+

f(x) = x² + 5x - 15
g(x) = x + 2

(fog)(x)
= (x + 2)² + 5(x + 2) - 15
= x² + 4x + 4 + 5x + 10 - 15
= x² + 9x - 1