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12. Suppose n is an integer. Select all statements below that are true: (3 points)

n?+n is always an even integer

nun is always an even integer when n is even

n+n is always an even integer when n is odd

n +n is never an even integer when nis odd

n2+ n is is never an even integer

n2 +n is sometimes an even integer

User AI Snoek
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1 Answer

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The first one and 4 and the last one
User Cristian Radu
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