Question

PLEASE HELP MEEE

suppose n is an integer. select all statements below that are true:

n^2 + n is always an even integer
n^2 + n is always an even integer when n is even
n^2 + n is always an even integer when n is odd
n^2 + n is never an even integer when n is odd
n^2 + n is never an even integer
n^2 + n is sometimes an even integer

Answer 1

An integer is a positive or negative whole number , including zero.

Answer 2

I like these statements, but they involve using inductive reasoning to prove