The area of a square is reduced by 20%, and the other side is increased by 2 meters to get a rectangle whose area is equal to that of the original square, How many square meters is the original square?

The area of a square is reduced by 20%, and the other side is increased by 2 meters to get a rectangle whose area is equal to that of the original square, How many square meters is the original square?

Suppose that the length of the original square is x and the area is reduced by 20%, then the length of the rectangle is 0.8x, 0.8x (x + 2) = x ^ 2
X = 8, the original area is 8 * 8 = 64M ^ 2