plis dibantu! make cara kerjanya yahh

f(x) = x² - 1
f(-3) = (-3)² - 1 = 9 - 1 = 8
f(-2) = (-2)² - 1 = 4 - 1 = 3
f(-1) = (-1)² - 1 = 1 - 1 = 0
f(0) = 0² - 1 = - 1
f(1) = 1² - 1 = 0
f(2) = 2² - 1 = 4 - 1 = 3
f(3) = 3² - 1 = 8
f(4) = 4² - 1 = 15
jawab = {-1,0,3,8,15} (B)