Question: Suppose you want to find a solution of the equation
x3 + 3x2 + 3x - 6 = 0
Consider f(x) = x3 + 3x2 + 3x - 6.
(a) Find f'(x), and use it to show that f(x) increases everywhere.
(b) How many roots does the original equation have?
(c) For each root, find an interval which contains it.
(d) Find each root to two decimal places, using Newton's method.