Use the Zero or Root Feature of a Graphing Utility $f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$

Multiple Choice

Use the zero or root feature of a graphing utility to approximate the zeros of $f ( x ) = 2 x ^ { 3 } + 8 x ^ { 2 } - 5 x - 7$ accurate to the nearest thousandth.

A) ​x = -4.692
B) ​x = -8.492,-0.695,1.186
C) ​x = -3.575
D) ​x = -4.388,-0.720,1.108
E) ​x = -3.910,-0.763,1.173