Application: a square, after the side length increases 6 cm, the area increases 132 square cm, how much is the original side length of the square

Application: a square, after the side length increases 6 cm, the area increases 132 square cm, how much is the original side length of the square

(132-6 × 6) / (2 × 6) = 96 / 12 = 8 (CM)
A: the original side length of a square is 8 cm