When the side length of a square is increased by 6 cm, its area is increased by 96 square cm. What is the area of the original square

When the side length of a square is increased by 6 cm, its area is increased by 96 square cm. What is the area of the original square

Let the original side length x be followed by X + 6, where (x + 6) is multiplied by (x + 6) - x is multiplied by x = 96 to get x = 5, so the area of the original square is 25