Question: Q4 (9 points) Consider the polynomial P(x) - 2x4 - 5x3 - 7x2 + 9x + 9. a) Find all possible rational roots of P(a).

Q4 (9 points) Consider the polynomial P(x) - 2x4 - 5x3 - 7x2 + 9x + 9. a) Find all possible rational roots of P(a). (3 marks) b) Use Descartes' rule of signs to determine the possible numbers of positive and negative roots of P(x). (3 mark: c) Find a bound on the possible roots of P(x). (2 marks) d) Use pat (b) and (c) to reduce the list of possible rational roots of P(a ) found in part (a). (1 mark) + Drag and drop an image or PDF file or click to browse

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