Location of zeros of polynomials with complex coefficients

Abstract

In this paper we extended Enestrom-Kakeya theorem (Let P(z)=∑a_izⁱ be a polynomial of degree n such that 0<a₀≤a₁≤…≤a_n then all the zeros of P(z) lie in |z|≤1) and our results [1] by relaxing the hypothesis in different ways by considering complex coefficients we get various other results which in term generalizes.