Multiple Choice
An open box is to be made from a square piece of cardboard, 21 inches on a side, by cutting equal squares with sides of length x from the corners and turning up the sides (see figure below) . Determine the function, V, in terms of x, that represents the volume of the box.
A)
B)
C)
D)
E)
Correct Answer:

Verified
Correct Answer:
Verified
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