👉 In mathematics, a polynomial of degree n is a monomial or a binomial raised to the power of n. A polynomial of degree 0 is called a constant polynomial. A polynomial of degree n is defined as: P(x) = a_nx^n + a_(n-1)x^(n-1) + ... + a_0 where the coefficients a_n, a_(n-1), ..., a_0 are real numbers and P(0) ≠ 0.