Question

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true.

Sn: 2 is a factor of n^2 + 7n

Answer 1

@helder_edwin

Answer 2

\[ \large S(n):\qquad 2\mid(n^2+7n) \]
right?

Answer 3

yes

Answer 4

this is easier than you think
for \(S_1\) replace \(n\) by \(1\)