MathDB
Putnam 1979 B3

Source:

April 8, 2022
college contests

Problem Statement

Let FF be a finite field having an odd number mm of elements. Let p(x)p(x) be an irreducible (i.e. nonfactorable) polynomial over FF of the form x2+bx+c,      b,cF.x^2+bx+c, ~~~~~~ b,c \in F. For how many elements kk in FF is p(x)+kp(x)+k irreducible over FF?