Answer:
An expression for the perimeter of the square as a product using the expression for the length of one side
.
Step-by-step explanation:
Given : The perimeter of a square is represented by the expression
feet.
To find : Write an expression for the perimeter of the square as a product using the expression for the length of one side ?
Solution :
We know that the perimeter of the square is 4 times the side of square.
The perimeter of a square is represented by the expression
feet.
Divide the expression by 4,

So, the perimeter is also written as
with length of side 
Therefore, an expression for the perimeter of the square as a product using the expression for the length of one side
.