let f(x)=3x-2 and g(x)= xsquared+6

then (f*g)(x)

let f(x)=3x-2 and g(x)= xsquared+6

f( g(x)) = 3(g(x)) - 2
= 3 (x^2+6) -2
= 3 x^2 + 18 - 2
= 3 x^2 + 16