Question

Illian is trying to save water, so she reduces the size of her square grass lawn by 8 feet on each side. the area of the smaller lawn is 144 square feet. in the equation (x – 8)2 = 144, x represents the side measure of the original lawn. what were the dimensions of the original lawn?

Answer 1

(x-8)*2=144
x-8=144:2
x-8=72
x=72+8
x=80 feet