If (x-a) is a factor of the polynomial f(x) then the remainder of f(x)(x−a) is f(a).
When a polynomial f(x) is divided by x−a and if f(a) = 0, then x−a is a factor of the polynomial f(x).
If f(x) is a polynomial such that f(a) = f(b2) = f(c3) = 0, then which of the following expressions is a factor of f(x)