Question

The Hewitt family plans to expand their square pool. Each side of the original pool will be increased by 4 meters, and the new total area of the pool will be 361 square meters. Find the length of each side of the original pool.
a. 16 meters
b. 15 meters
c. 19 meters
d. 12 meters

Answer 1

original dimension of the square pool = x ft by x ft
original area = x^2 ft^2

new dimensions: x+4 ft by x+4 ft
new area = (x+4)^2

(x+4)^2 = 361
x+4 = √361 = 19

finish it.

Answer 2

Thank you @mathhelper!!!!!!!