Answer:
a = x(x + 10)
Step-by-step explanation:
Let A be the area of the land.
X * X would work for a square area of land, but the length is 10 feet longer than the width,l so it would be a = x(x + 10), instead of a = x(x).
Answer: (x^2)+10x
Step-by-step explanation: Start with x times x+10
