1. The problem statement, all variables and given/known data If a cubic equation, f(x) has a factor of (3+√2), then the conjugate of the factor, (3-√2) is also a factor for f(x). 2. Relevant equations 3. The attempt at a solution Just to confirm is that statement correct? I read it else where but i not sure is it correct or wrong, if yes, can anyone explain why? Thanks..