Question 865283
You have a square, and expression of its side.  What is area, and its meaning?


2x-1 in one direction and 2x-1 in the direction at right angle to it.  Again, you have a square.  What does area mean?


{{{(2x-1)}}} units by {{{(2x-1)}}} units is some square units of surface.  
{{{(2x-1)(2x-1)}}} square units.  You can "simplify" that if you want, through multiplication.