IMO Shortlist 1989 problem 5
Dodao/la:
arhiva2. travnja 2012. Find the roots
of the polynomial
satisfying
%V0
Find the roots $r_i \in \mathbb{R}$ of the polynomial $$p(x) = x^n + n \cdot x^{n-1} + a_2 \cdot x^{n-2} + \ldots + a_n$$ satisfying $$\sum^{16}_{k=1} r^{16}_k = n.$$
Izvor: Međunarodna matematička olimpijada, shortlist 1989