Question 53
Determine all triples $(a, b, c)$ of integers such that
$$
a^3 + b^3 + c^3 = 25(abc + a^2b + b^2c + c^2a).
$$
$$
a^3 + b^3 + c^3 = 25(abc + a^2b + b^2c + c^2a).
$$
Math Olympiad Vault · MathNet 2025 — Part 01 (100 complete bilingual questions)