Kasih tau nomor 1 sama 2 ya caranya sm jawabanyayaa

1) f(x) = x² - 1
a) f(-3) = (-3)² - 1 = 9 - 1 = 8
f(-1) = (-1)² - 1 = 1 - 1 = 0
f(0) = 0 - 1 = - 1
f(2) = 2² - 1 = 4 - 1 = 3
f(3) = 3² - 1 = 9 - 1 = 8
c) f(a) = a² - 1
3 + 1 = a²
a = √4
a = 2