MathDB
x^2y^2(x^2+y^2)<=2 if x, y>=0 and x+y= 2

Source: 2001 Estonia National Olympiad Final Round grade 11 p1

March 12, 2020
inequalitiesalgebra

Problem Statement

If xx and yy are nonnegative real numbers with x+y=2x+y= 2, show that x2y2(x2+y2)2x^2y^2(x^2+y^2)\le 2.