Question

The area in square feet of a rectangular field is x^2 - 100x + 1600. The width, in feet, is x - 20. What is the length, in feet?

Answer 1

Length in feet = X - 80

Explanation:

A = width x length

A/width = length

(x^2 -100x + 1600) /( x - 20) = length

(x - 20) (x - 80) / (x - 20) = length

x - 80 = length

x - 80 = length