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.

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@Nnesha

@pooja195

Do you know the Descrates rule of signs

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