Enter a simplified expression to represent the situation. A square swimming pool is surrounded by a cement walkway with a uniform width. The swimming pool
has a side length of (x - 3) feet. The side length of the entire square area including the pool and the
walkway is (x + 2) feet.
Enter an expression for the area of the walkway. Then find the area of the cement walkway when
x = 7 feet.
The area of the walkway is
ft?
When x = 7 feet, the area of the cement walkway is
ft?