Question

is -1 a zero of a polynomial?

Answer 1

The zero(es) of a polynomial is(are) those input values for which the polynomial, or the function, evaluates to 0. A non-zero constant polynomial is written as: p(x) = c, where c is a non-zero real number. This means that for all possible values of x, p(x) = c, i.e. it is never 0.

Answer 2

it can be in few cases