Question

Suppose that the functions g and h are defined for all real numbers x as follows.
g(x)=3x-6
h(x)=x-2
Write the expressions for (g- h) (x) and (g+h)(x) and evaluate (g−h)(-2).
(g⋅h)(x) = []
(g+h)(x) = [
(g-h) (-2) = []