In Exercises 31–34, use a graphing utility to graph the equations and to approximate the...

In Exercises 31–34, use a graphing utility to graph the equations and to approximate the x-intercepts. In approximating the x-intercepts, use a “solve” key or a sufficiently magnified view to ensure that the values you give are correct in the first three decimal places. Remark: None of the x-intercepts for these four equations can be obtained using factoring techniques.)