Question

PLZZZ HELLP I'LL GIVE YOU POINTS AND MARK YOU AS BRAINLIEST
evaluate
r(11)=(x+1)(x-3)
I know the answer is 96 but how do you get 96

Answer 1

You plug 11 in where x is.
r(11) = (11 + 1)(11 - 3)
= (12)(8)
= 96