Question 603084
A verbal expression?
There are two whole numbers involved, so let's call them a and b.
We will say that a>b.
The length of the rectangle is a+b.
The width of the rectangle is a-b.
The area of the rectangle is
{{{(a+b)(a-b)=a^2-b^2}}}
Maybe the expected answer is
"The area of the rectangle is the difference between two perfect squares", or
"The area of the rectangle is numerically equal to the difference between two perfect squares," or some variation of that theme.