# Asking a question in topic $X$,now it seems like it's related to topic $Y$ which OP don't know about it.what action(s) should be taken?

So here is the weird story...

I was solving questions from a chapter of a book that was about equation solving and system of equations and the book subjects are precalculus algebra.and there was question there which I was not able to solve it.So I asked it on link and I tagged question with with , and . After the time passed and comments and answers started to showing up, it became obvious that the question is related to and which I don't know about this topics and my knowledge is very minimum there.

So my questions and problems are

1- As the two answers on my question are not related to the tags subjects that I have chosen for my question, why those answers are posted when they won't have a benefit for OP. Albeit thanks to people who put time and effort to answer my questions, but isn't tags are a sign of which topics OP is familiar with them? They could have asked me in comments about that I'm familiar with those topics or not, So then posting their answers.

2-As it turned out that the question is not solvable with precalculus techniques,and there solutions that are related to other topics like calculus, should I change the tags of my questions? As I think people who are familiar with those topics could benefit from this question and its answers.

3-As it is my fault that asking this question which is not in the topics that I familiar with them and there are two answer that seems to be right and useful, what should I do about accepting answer?

• This seems, to some extent, related: meta.math.stackexchange.com/questions/11419/… – Martin Sleziak Sep 9 '14 at 17:00
• I have removed specific-user tag, since this tag is for questions which focus on a particular user, rather than those discussing general user issues. If I misunderstood your question and you do not want to discuss this in general but only one particular instance, feel free to change the tags. But if it is the case, specific-question would be a more appropriate tag and it would be useful to link to the question. – Martin Sleziak Sep 9 '14 at 17:12