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a + b + c = 0 , a^2 + b^2 + c^2 = 1 , a^3 + b^3 +c^3 = 4abc

Source: Irish MO 2017 paper 1 problem 2

December 12, 2022
algebrasystem of equationsSystem

Problem Statement

Solve the equations : {a+b+c=0a2+b2+c2=1a3+b3+c3=4abc\begin{cases} a + b + c = 0 \\ a^2 + b^2 + c^2 = 1\\a^3 + b^3 +c^3 = 4abc \end{cases} for a,b, a,b, and c.c.