In order to have a zero of -2 it must have a factor of (x+2) so that when (x+2) is set = 0, the result will be x = -2 So suppose the other factor is, say, (3x-4). You could make up any binomial for the second factor. I just arbitrarily picked (3x-4). Then multiply it by (x+2): (3x-4)(x+2) FOIL it out: 3x²+6x-4x-8 Combine like terms: 3x²+2x-8 f(x) = 3x²+2x-8 is one possibility. There are many others. Edwin