Question: 10. Let f(x) = 2x4 - 7x3 - 5x2 + 28x - 12 (a) List all possible rational zeros. (b) Use synthetic division to show

10. Let f(x) = 2x4 - 7x3 - 5x2 + 28x - 12 (a) List all possible rational zeros. (b) Use synthetic division to show that = is a zero of f (x). (c) Find the remaining zeros of f (x). (d) Write the complete linear factorization of f (x). (e) Sketch the graph of f(x). 9 8 -7 6 -5 4 3 2 -1 23456789

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