Respuesta :

Answer:

x^2 - 2x - 1.

Step-by-step explanation:

(g - f)(x)

= g(x) - f(x)

= x^2 - 2 - (2x - 1)    (Note we put the 2x -1 in parentheses).

=  x^2 - 2 - 2x + 1

= x^2 - 2x - 1.