Find a Rational Zero of the Polynomial Function and Use $$f ( x ) = x ^ { 3 } + 2 x ^ { 2 } + 5 x - 26$$

Multiple Choice

Find a rational zero of the polynomial function and use it to find all the zeros of the function.
- $$f ( x ) = x ^ { 3 } + 2 x ^ { 2 } + 5 x - 26$$

A) $\{ 2 , - 2 + 3 i , - 2 - 3 i \}$
B) $\{ 2,3 + 2 i , 3 - 2 i \}$
C) $\{ - 2 , - 2 + \sqrt { 5 } , - 4 - \sqrt { 5 } \}$
D) $\{ 2,3 + \sqrt { 5 } , 3 - \sqrt { 5 } \}$