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If \(x\) and \(y\) are positive integers, is \(x^2 + y^2\) odd?
(1) \(xy\) is even.
(2) \((x + 2)(y + 4)\) is even.
[spoiler]OA=E[/spoiler]
Source: Veritas Prep
(1) \(xy\) is even.
(2) \((x + 2)(y + 4)\) is even.
[spoiler]OA=E[/spoiler]
Source: Veritas Prep
