SOLUTION: Solve: The number of square units in the are of the square base of a walled enclosure is 12 more than the number of units in its perimeter. Find the length of a side.

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Question 860237: Solve: The number of square units in the are of the square base of a walled enclosure is 12 more than the number of units in its perimeter. Find the length of a side.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Side length, x.
Perimeter, 4x.
Area, x^2.
The description seems highlight%28x%5E2=4x%2B12%29;
area of square base, x%5E2,
number of square units, same as area, is 4x%2B12.

Work with x%5E2-4x-12=0.
%28x%2B2%29%28x-6%29=0.
The solution part which makes sense is highlight%28x=6%29.