What are the solutions to the equation 0 = x2 – x – 6? check all that apply.

x = –3
x = –2
x = 0
x = 2
x = 3

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0