Multiple Choice

A machinist is calculating the surface area of a square metal plate with a side length of (425)(4 - 2\sqrt{5}) centimeters. To find the area, the machinist must square the side length using the pattern (ab)2=a22ab+b2(a - b)^2 = a^2 - 2ab + b^2. Which of the following is the correctly simplified expression for the area (425)2(4 - 2\sqrt{5})^2?

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Updated 2026-04-20

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