If you increase the width of a rectangle by 5cm and decrease its length by 3cm, it becomes a square. It is known that the area of a square is 75 square centimeters larger than that of a rectangle How many square centimetres is the area of a square

If the side length of the square is a, so a & # 178; - (a-5) (a + 3) = 75, then a = 30, so the square area is 900cm & # 178;

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