SOLUTION: The length of a rectangle is 3 feet more than twice its width. The area is 65 square feet. Find the dimensions of the rectangle using the quadratic formula.

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Question 920918: The length of a rectangle is 3 feet more than twice its width. The area is 65 square feet. Find the dimensions of the rectangle using the quadratic formula.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

     .

A = Lw

(2w+3)w = 65 ft^2

2w^2 + 3w - 65 = 0   (Tossing out the negative solution for unit measure)

(2w + 13)(w -5 ) = 0

w = 5ft  and L = 13ft 2%2A5+%2B+3