Given that f (x) = x+2 and g (x) = x^2-2, find (f+g) (-4)

12

Step-by-step explanation:

note that (f + g) (x) = f (x) + g (x)

f (x) + g (x) = x + 2 + x² - 2 = x² + x

To evaluate (f + g) ( - 4) substitute x = - 4 into f (x) + g (x)

(f + g) ( - 4) = ( - 4) ² + ( - 4) = 16 - 4 = 12