SOLUTION: 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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Question 45790: 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.
I am at a loss on how to start solving this one.
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
THE ORIGINAL DIMENTION OF THE CARDBOARD IS X*X=X~2 BY CUTTING AN (X-3) SQUARE HOLE IN THE CENTER (OR ANYWHERE) IS X~2-(X-3)~2 OR X~2-(X~2-6X+9) OR
X~2-X~2+6X-9 OR 6X-9
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