what is the range of the function fx x3 x2 x when the dom

what is the range of the function f(x) = x^3 - x^2 - x when the domain is {1, 2, 3)

Solution

f(x) = x³ - x² - x

f(1) = 1³ - 1² - 1 = -1

f(2) = 2³ - 2² - 2 = 2

f(3) = 3³ - 3² - 3 = 15

Hence Range = {-1 , 2 , 15}