Question 523743
If each side of Square X increases by 3 feet, the area increases by 63 square feet. What is the perimeter of Square X?
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let x=side of square
(x+3)^2-x^2=63
x^2+6x+9-x^2=63
6x+9=63
6x=54
x=9
ans: 
Perimeter = 4x=4*9=36 ft