The area of a square is defined by, A (x) = x 2 - 8x + 16. What is the length of a side of the square?

You must factor the second-degree polynomial to find the sides of the square. The correct factorization for this case is

x ^ 2 - 8x + 16 = (x-4) (x-4).

Therefore, the length of the side of the square is

L = (x-4).