Answer:
B
Explanation:
this is a college question. and you don't know how to calculate the function result of a function with a given x-value ?
what do you not understand about functions ? if you need further explanations, please let me know.
f(x) = (x² - 4)/(x + 2)
x = -1
f(-1) = ((-1)² - 4)/(-1 + 2) = (1 - 4)/1 = -3
FYI : we also see/know that
(x² - 4) = (x + 2)(x - 2)
so,
f(x) = (x + 2)(x - 2)/(x + 2) = x - 2
and therefore
f(-1) = -1 - 2 = -3