Question

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

n2 + n is always an even integer
n 2 + n is always an even integer

n2 + n is always an even integer when n is even
n 2 + n is always an even integer when n is even

n2 + n is always an even integer when n is odd
n 2 + n is always an even integer when n is odd

n2 + n is never an even integer when n is odd
n 2 + n is never an even integer when n is odd

n2 + n is is never an even integer
n 2 + n is is never an even integer

n2 + n is sometimes an even integer

Answer 1

- n2 + n is always an even integer when n is even
- n2 + n is always an even integer when n is odd
- n2 + n is sometimes an even integer