Question

A company estimates its total profit (profit = total revenue minus total cost) as P(x) = 2x^5 – 3x^4 – 5x^2 – 2, where P is in thousands of dollars and x is the number of years elapsed since the company was founded. How many times can the total profit become exactly zero? Hint: Use Descartes's rule of signs.

A. 2 or 0
B.5,3, or 1
C. 3 or 1
D. 1

Answer 1

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