SOLUTION: The perimeter of a rectangle is 14 feet, and the area is 12 square feet. What is the width of the rectangle?

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Question 256306: The perimeter of a rectangle is 14 feet, and the area is 12 square feet. What is the width of the rectangle?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P=2L%2B2W=14
A=LW=12
.
.
.
L%2BW=7
L=12%2FW
12%2FW%2BW=7
12%2BW%5E2=7W
W%5E2-7W%2B12=0
%28W-3%29%28W-4%29=0
Two solutions:
W-3=0
W=3
L=4
.
.
.
W-4=0
W=4
L=3