Question 1030197
A square pool has a 6-foot wide walk around it. If the sides of the pool have length x, find a polynomial that gives the area of the pool and sidewalk. 
<pre>Let one side of square be S
Then area of pool = {{{S^2}}}
As a uniform width of 6 feet adds 12 (6 * 2) feet to each side of the pool, area of pool and sidewalk is: {{{highlight_green(matrix(1,4, (S + 12)^2, or, (S^2 + 24S + 144), ft^2))}}}