MathDB
S 4

Source:

May 25, 2007
quadraticsinductionbinomial coefficientsalgebraMiscellaneous Problems

Problem Statement

If xx is a real number such that x2−xx^2 -x is an integer, and for some n≥3n \ge 3, xn−xx^n -x is also an integer, prove that xx is an integer.
Back to ProblemsView on AoPS