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Junior Regional Olympiad - FBH 2016 Grade 8 Problem 4

Source:

September 29, 2018
number theoryequations

Problem Statement

In set of positive integers solve the equation x3+x2y+xy2+y3=8(x2+xy+y2+1)x^3+x^2y+xy^2+y^3=8(x^2+xy+y^2+1)