Quadratic and Exponential Functions

Question

The area of a square can be tripled by increasing its length by 6 centimeters and increasing its width by 3 centimeters. What is the length of the side of the square?

Answer 1

s represents the sides of the original square

s² represents the area of the square

(s + 6)(s + 3) represents area of altered figure

(s + 6)(x + 3) = 6s²

 

Can you solve for s?