Jika f(x=)5x-13 dan g(x) 2x²-8x+6, maka (fog) (x)

Diketahui:
f(x)=5x-13
g(x)=2x²-8x+6
jawab:
(fog)(x)= f(g(x))
=f(2x²-8x+6)
=5(2x²-8x+6)-13
=10x²-40x+30-13
=10x²-40x+17