Question 635938
let the side length of square  be x
area = x^2

increased by 8

New side length  = (x+8)

new area = (x+8)^2

new area - original  area = 304

{{{(x+8)^2-x^2= 304}}}

{{{x^2+16x+64-x^2=304}}}

16x=304-64

16x=240

/16
x=15 yards - original length