Question 609126
Hello, 
Here's one way.
Draw a rectangle and label the measurement of the width as x-2 and the length 
as x+4. Let's suppose the area of the rectangle is 50 square feet. 
We know the area is Width times Length so:
(x-2)(x+4)=50
Multiply this out and we get:
x^2+2x-8=50
There we go. 
Make sense?
RJ
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