Question

Write whether every positive integers can be of the form $4q+2$ ,
where $q$ is an integer. justify your answer .

Answer 1

When

q=1 we get 6

q=2 we get 10

q=-3 we get 14 and so on

So, all the number of the form $4q+2$ will give only even numbers which are not multiple of 4.

Hence, every positive number cannot be written in form of $4q+2$.