SOLUTION: Length of a rectangle is 6 inches less than twice the width if the area of the rectangle is 108 sq in determine the dimension of a rectangle

Question 874798: Length of a rectangle is 6 inches less than twice the width if the area of the rectangle is 108 sq in determine the dimension of a rectangle

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,



A = Lw = (2w-6)w = 108 in^2

  2w^2 - 6w - 108 = 0

   w^2 -3w - 54 = 0

  (w+6)(w-9)= 0, w = 9in and L = 12in 

Tossing out negative solution for Unit measure 

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