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.

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asked May 14, 2018 142k views

2 Answers

Rkey · Answer 1 · 2018-05-18T06:35:59+0000

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

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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.

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