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a + b + c = 15 , (a - 3)^3 + (b - 5)^3 + (c -7)^3 = 540

Source: JBMO 2009 Shortlist A1

October 14, 2017
JBMOalgebrasystem of equations

Problem Statement

Determine all integers a,b,ca, b, c satisfying identities: a+b+c=15a + b + c = 15 (a3)3+(b5)3+(c7)3=540(a - 3)^3 + (b - 5)^3 + (c -7)^3 = 540