The area of a rectangular fountain is (x^2+12+20) square feet. a 2-foot walkway is built around the fountain. find the dimensions of the outside border of the walkway

Area=legnth times width
factor
what 2 numbes multiply to 20 and add to 12
10 and 2
(x+2)(x+10)

2 foot walkway is increase legnth and width by 2

area=LW
area=(x+2)(x+10)
increase each by 2
area=(x+4)(x+12)

the outside border is x+4 by x+12