Step-by-step explanation:
Hello! Remember you need to write complete questions in order to get good and exact answers. Here I'll assume that you want the interpretation of the expression:

The easier interpretation is that we are talking about a square of sides
so the given expression would represent the area of the square. In other words:

For instance, if we have a square of sides
then the area would be:

The figure below shows the representation of this problem.