Question 1030197
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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. 
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Two (different) polynomials are 


{{{x^2}}} for the area of the pool,   and


{{{(x+12)^2 - x^2}}}  = 24x + 144 for the area of the sidewalk.