Question 585271
The area of a rectangular swimming pool is given by 2x^2 – 5x – 3 ft^2.
 One side length of the pool is given by 2x + 1 feet.
 What is an algebraic expression for the other side length of the pool? 
:
A = L * W
L = A/W
:
L = {{{(2x^2-5x-3)/(2x+1)}}}
Factor, then cancel (2x+1)'s 
L = {{{((2x+1)(x-3))/(2x+1)}}} = (x-3) ft is the Length
:
Prove this.  FOIL
(2x+1)(x-3) = 2x^2 - 6x + x - 3 = 2x^2 - 5x - 3 sq/ft