I've just started year 1 at the university, can't really understand what i have to do, the new signs also confuse me, please guide me and show me how i should handle this question:
i think instead of "k" he ment "n"...
You have to know (and it's easy to prove, but it requires a little abstraction and, perhaps, a little experience in these things) the following:
if is a rational root of the integer polynomial , then , with meaning "x divides y".
Well, in your case you have , so if is a rational root of that pol., it must be that
ok thank you very much! but i still dont get it, how i suppose to present the solution?? a means the
coefficient of the last part and b is the one for the first part? do i need to divide each value from group
a in each value of group b and find if it's rational root or what?