Question: Use Newton's method to find, within 103, the zeros and critical points of the following functions. Use this information to sketch the graph of f

Use Newton's method to find, within 10−3, the zeros and critical points of the following functions. Use this information to sketch the graph of f .
a. f (x) = x3 − 9x2 + 12
b. f (x) = x4 − 2x3 − 5x2 + 12x − 5

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