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Use the formula for the area of a square.
D
To find the area of the square, we will use the formula for calculating the area of a square. A=s^2 We were told that the side length s is equal to x-4. To find the area of the square, we will substitute this value into the formula to calculate A.
s= x-4
(a-b)^2=a^2-2ab+b^2
Calculate power and product
The area of the square is x^2-8x+16. Therefore, the correct option is D.
