A room has an area of 216 square feet. One dimension is 6 feet more than the other. Find the length of the longer side.

The dimensions would be x and x+6. The area is 216.

x (x+6) = 216

x^2 + 6x - 216 = 0

(x-12) (x+18) = 0

x = 12---Yes---

x = - 18---No, sides cannot be negative---

If one side is 12, the other side is 18. To check:

12 * 18 = 216

216 = 216

Correct

He correct cause I just did it.; )