Answer: Length = x² - 6x - 16
Step-by-step explanation:
The formula for determining the area of a rectangle is expressed as. Area = length × width
Length = Area/width
The area of a rectangle is represented by the function
x³ - 2x² - 40x - 64. The width of the rectangle is x + 4. Therefore,
Length = (x³ - 2x² - 40x - 64)/(x + 4)
We would apply the method of long division. The steps are shown in the attached photo. From the photo,
Length = x² - 6x - 16
Answer:
384
Step-by-step explanation:

Cross multiply and you get 384.
1) width = x
length = x + 8
perimeter = 2 (length + width)
196 = 2 * (x+8+x)
196 = 2* (2x+8)
196 = 4x + 16
180 = 4x
x = 45 (thats width)
2) length would be 45+8=53
3) area = length times width = 45 * 53 = 2385 square feet