Question: (a) Use a graphing utility to graph the equation, (b) Use the graph to approximate any x-intercepts, (c) Set y = 0 and solve the

(a)­ Use a graphing utility to graph the equation, 

(b)­ Use the graph to approximate any x-intercepts, 

(c)­ Set y = 0 and solve the resulting equation, 

(d)­ Compare the result of part­(c) with the x-intercept(s) of the graph.

1. y = x3 − 2x2 − 3x

2. y = 2x4 − 15x3 + 18x2

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