Question

if n is a positive integer, then n^2-n is always
even
odd
prime
composite​

Answer 1

Consider n identical objects of first kind, n identical objects of second kind, etc. and n identical objects of n th

kind. There are in total n

Answer 2

prime

Step-by-step explanation:

if we assume n =1

then 1^2-1=1

jence 1 is prime number