Which polynomial function does NOT have 0 as a root?

Question

h(x) = x4 + 3x2 – x

f(x) = x4 – 1

k(x) = x2 – x3

g(x) = x2 – 3x

Answer 1

If the polynomial has a non-zero constant term, then 0 cannot be a zero of the polynomial.  The second one in the list does not have a zero of 0.