Question

If f(x) =
(3 + x)
(x-3)
what is f(a + 2)?

Answer 1

(a^2)+4a-5

Explanation:

(3+a+2)(a+2-3)

(a+5)(a-1)

use FOIL or box method

5a-5+(a^2)-a simplifyes to

(a^2)+4a-5