For the Polynomial, One Zero Is Given $$P ( x ) = x ^ { 3 } - 6 x ^ { 2 } + 13 x - 20 ; 4$$

Multiple Choice

For the polynomial, one zero is given. Find all others.
- $$P ( x ) = x ^ { 3 } - 6 x ^ { 2 } + 13 x - 20 ; 4$$

A) $1 + 2 i , 1 - 2 i$
B) $- 1 + 2 i , - 1 - 2 i$
C) $1 + \sqrt { 5 } , 1 - \sqrt { 5 }$
D) $1 + \sqrt { 5 } i , 1 - \sqrt { 5 } i$