Cut off a rectangle 2cm wide from the square sheet, and the remaining area is 48cm2. Then the area of the original square sheet is () A. 9cm2B. 68cm2C. 8cm2D. 64cm2

Let the side length of the square be xcm. According to the meaning of the question, we get x (X-2) = 48, and the solution is X1 = - 6 (rounding off), X2 = 8. Then the area of the original square iron sheet is 8 × 8 = 64cm2

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