Which of the following expressions yields an even integer...

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PS · Problem Solving

555-605

Number Properties

Which of the following expressions yields an even integer for every integer value of n?

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A

n^2 - 2n + 6

B

n^2 + 4n - 6

C

3n^2 + 2n + 2

D

2n^2 + 4n + 8

E

5n^2 - 2n + 2

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Explanation

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