Have a rectangular flower bed that will have border of pavers.The width of the border will  be same on all sides. Write polynomial for total area of flower bed and border.

⚑ Flag

Let w = width of flower bedLet l = length of flower bedLet b = width of the borderthe total width would be w + 2bthe total length would be l + 2bthe total area would be (w + 2b)(l + 2b)the area of the pavers would be (w + 2b)(l + 2b) - lw