Solve Polynomial Inequalities Using a Number Line

Practice: Solving Polynomial Inequalities Using a Number Line

The graph of f(x) f(x)~ is shown below.


If the solution is (,5]  [4,1]  [7,)(-\infin,-5]~\cup~[-4,1]~\cup~[7,\infin), determine an inequality that describes f(x)f(x). (Express in factored form.)
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