Question

Se sabe que f(x)= x^2-1 ¿cuánto es f(-3)? *

Answer 1

f(x)=x^2-1
f(3)=3^2-1
f(3)=3^1
f(3)=3

Answer 2

f(-3)=-3^2-1

=9-1=8

f(x)=(x^2)-1