Solve the problem.A company purchases a piece of equipment for A dollars, and the equipment depreciates at a rate of r each year. Its value V after n years is given by 
Expand this expression for n = 4.
A. V = A(1 + 4r + 12r2 + 24r3 + r4)
B. V = A(1 - 4r + 12r2 - 24r3 + r4)
C. V = A(1 - 4r + 6r2 - 4r3 + r4)
D. V = A(1 + 4r + 6r2 + 4r3 + r4)
Answer: C
Mathematics
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