MathDB
Composition of polinomials

Source: IOM 2017 #3

September 5, 2017
polynomialalgebra

Problem Statement

Let QQ be a quadriatic polynomial having two different real zeros. Prove that there is a non-constant monic polynomial PP such that all coefficients of the polynomial Q(P(x))Q(P(x)) except the leading one are (by absolute value) less than 0.0010.001.