SOLUTION: the area of a rectangle is 165ft^2. the length is 4ft greater than the width. find the dimensions of the rectangle.

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: the area of a rectangle is 165ft^2. the length is 4ft greater than the width. find the dimensions of the rectangle.       Log On


   

Question 87298: the area of a rectangle is 165ft^2. the length is 4ft greater than the width. find the dimensions of the rectangle.
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
W*L=165, L=W+4
W(W+4)=165
W^2+4W-165=0
(W-11)(W+15)=0
W-11=0
W=11 ANSWER.
PROOF
11(11+4)=165
11*15=165
165=165