Question 90250
From a square piece of cardboard with width x inches, a square of width x-3 inches is removed from the center. Write the area of the remaining piece as a function of x.
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Area of original piece = x^2
Area of piece removed = (x-3)^2
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EQUATION:
Area of Remaining piece = original area - area removed
A of remaining piece = x^2 - (x-3)^2
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Cheers,
Stan H.