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diophantine m^2 + 2n^2 = 3(m + 2n) (HOMC 2008 Q2)

Source:

July 25, 2019
number theoryDiophantine equationdiophantine

Problem Statement

Find all pairs (m,n)(m, n) of positive integers such that m2+2n2=3(m+2n)m^2 + 2n^2 = 3(m + 2n)