Im learning polynomials and we are learning the strategy grouping, can anyone explain how to group polynomials and maybe give an example : ) greatly appreciated

Grouping can mean different things in different contexts. In simple cases, polynomials are written in such a way that all you need to do is add parentheses to make groups. Usually we are interested in doing this so we can factor or simlify the result.

Example
  x^2 +2x +3x +6
  (x^2 +2x) +(3x +6) . . . . parentheses added to group pairs of terms
  x(x +2) +3(x +2) . . . . . . common factor pulled from the terms of each group
  (x +3)(x +2) . . . . . . . . . common factor removed to give factored result