SOLUTION: The length of a rectangle is represented by x+1. It's width by x-3. The area is 117cm^2. Find the dimensions.

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Question 716869: The length of a rectangle is represented by x+1. It's width by x-3. The area is 117cm^2. Find the dimensions.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


The area is the length times the width. FOIL the two binomials, set them equal to the given area, put the equation into standard form, and solve. Discard the negative root because a negative length or width makes no sense. The positive root will give you two positive dimensions when you calculate x + 1 and x - 3

John

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