Please please answer! The area of a rectangle is 45 square feet. The length is 4 feet longer than the width. Which equation could you use to find the length of the rectangle in feet?

Let the length be x
Define Length and Width:
Length =x
Width = x - 4 [Because the length is 4 feet longer, therefore the width is 4 feet shorter]
Given that Length x Width = Area:
x(x - 4) = 45
Answer: x(x - 4) = 45