Answer:
f(3) = -13
Step-by-step explanation:
f(x)= - x²-4 (not (-x)²)
f(3) = - 3² - 4 = - 9 - 4 = -13
f(x)= -x^2-4
Let x = 3
f(3) = - (3)^2 -4
= -9 -4
= -13
