having problems with big oh and big omega functions when there is a $\log n$ added or subtracted. For example how do I deal with $n+\log n$ or $n-\log n$ when I have to determine whether the function is in $\Omega(n)$ or in $\Omega(n^2)$? For example, is $n-\log n$ in $\Omega(n)$ or in $\Omega(n^2)$?
I cannot ignore the log function and am not sure how to deal with it. Polynomials and logs when multiplied I find OK. But I have a mental block over this one so help would be appreciated