SOLUTION: A rectangle is drawn so that the width is 5 feet shorter than the length. The area of the rectangle is 14 square feet. Find the length of the rectangle.

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Question 931520: A rectangle is drawn so that the width is 5 feet shorter than the length. The area of the rectangle is 14 square feet. Find the length of the rectangle.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A=L%2AW=14
W=L-5
Substituting,
L%2A%28L-5%29=14
L%5E2-5L=14
L%5E2-5L-14=0
%28L-7%29%28L%2B2%29=0
Two solutions but only the positive solution makes sense here.
L-7=0
L=7
Then,
W=7-5
W=2