SOLUTION: The area of a patio is 90 square feet. The length of the patio is 1 foot longer than the width. What is the length of the patio?
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Question 750920: The area of a patio is 90 square feet. The length of the patio is 1 foot longer than the width. What is the length of the patio?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x(x+1) = 90
x^2+x = 90
x^2+x-90 = 0
(x+10)(x-9) = 0
x+10=0 or x-9=0
x=-10 or x = 9
Ignore the negative solution.
The only solution that makes sense is x = 9, so x+1 = 10
The length is 10 ft.
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