SOLUTION: The length of a rectangular frame is 12 inches more than twice the width. The area inside the frame is 1040 square inches. Find the dimension of the frame.

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Question 386060: The length of a rectangular frame is 12 inches more than twice the width. The area inside the frame is 1040 square inches. Find the dimension of the frame.
Answer by JimboP1977(311) About Me  (Show Source):
You can put this solution on YOUR website!
Length = L
Width = W
L+12 = 2W
L x W = 1040
(2W-12) x W = 1040
2W^2 -12W = 1040
W^2 - 6W = 520
(W-3)^2 - 9 = 520
W = 529^(1/2) + 3
W = 26
L = 40