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MathNet 2019-part-03 — 184 problems (EN–VI) Question 41

Math Olympiad Vault · MathNet 2019-part-03 — 184 problems (EN–VI)

Question 41

Let $\alpha$ and $\beta$ be two positive integers. Prove that the integer
$$
\alpha^2 + \left\lceil \frac{4\alpha^2}{\beta} \right\rceil
$$
is not a square of an integer.