Find the area of a square with a length of 5 cm.

area of a square = a^2 = 5^2 = 25

answer
area of a square = 25 cm^2

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4