SOLUTION: The area of a square is numerically equal to four times its perimeter. Find the length of its side.

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Question 1185378: The area of a square is numerically equal to four times its perimeter.
Find the length of its side.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Side length of the square, x

Area, x%5E2
Perimeter, 4x

The description, x%5E2=4%2A4x

x%5E2-16x=0
x%28x-16%29=0
x cannot be 0, so must be highlight%28x=16%29.