SOLUTION: A rectangle has a length that is 4 more than its width. The rectangle has an area of 320 square meters. What are the dimensions of the rectangle? Please and thank you!

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Question 705346: A rectangle has a length that is 4 more than its width. The rectangle has an area of 320 square meters. What are the dimensions of the rectangle? Please and thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x(x+4) = 320

x^2 + 4x = 320

x^2 + 4x - 320 = 0

(x - 16)(x + 20) = 0

x-16 = 0 or x+20 = 0

x = 16 or x = -20

So the width is 16 meters. The length is 20 meters.
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