SOLUTION: A rectangular bedroom is 7ft longer than it is wide. It's area is 228 ft^2. What are it's dimensions?

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Question 214435: A rectangular bedroom is 7ft longer than it is wide. It's area is 228 ft^2. What are it's dimensions?
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Let represent the width. Then must represent the length. The area is the product of the length times the width, so:



Put it in standard form and then solve the quadratic for . Exclude the extraneous negative root. The positive root will be the width. Add 7 to get the length.

John