pre-calc

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true. Show your work.
Sn:   2 is a factor of n^2 + 7n

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asked by cam
  1. S1:
    2 | 1^2 + 7*1
    2 | 1+7
    2 | 8
    true

    do likewise for n=2,3

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    posted by Steve

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