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Omni-MATH / Determine all pairs (a,b) of integers with the property that the numbers a²+4b and b²+4a are both perfect squares.

Problem

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problem

Determine all pairs (a,b)(a, b) of integers with the property that the numbers a2+4ba^{2}+4 b and b2+4ab^{2}+4 a are both perfect squares.
Plain-text mathematical notation (without MathML)
Determine all pairs (a,b) of integers with the property that the numbers a²+4b and b²+4a are both perfect squares.
Original LaTeX notation
Determine all pairs $(a, b)$ of integers with the property that the numbers $a^{2}+4 b$ and $b^{2}+4 a$ are both perfect squares.

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