(fog)(x) for f(x)=2x-3 and g(x)=x^2 - 3x - 2 how do I work this out?

(fog)(x) = 
f(g(x))= 
2g(x)-3= 
2(x^2 - 3x - 2)-3= 
2x^2 - 6x - 7 

:)