Quick help Algebra question

Algebra
Tutor: None Selected Time limit: 1 Day

The length of a rectangle is 3m

 more than twice the width, and the area of the rectangle is 
 .Find the dimensions of the rectangle.

Length   m

Width   m

Feb 10th, 2015

let the width is x, then the length is 3+x

x(3+x) = 54

x^2+3x-54=0

(x-6) (x+9)= 0 

x = 6

legnth is 6+3 = 9 m

width is 6m 


Feb 10th, 2015

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