Volume of a Box (Refer to the preceding exercise.)
A box is constructed from a square piece of metal that
is 20 inches on a side.
(a) If the square corners of length x are cut out, write
a polynomial that gives the volume of the box.
(b) Evaluate the polynomial when inches.
(c) Factor out the greatest common factor for this
polynomial expression.
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what shape is the box? Is it a square box, of height x? Or is it a cube? Does it have a lid, or is it open?
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