For the Polynomial, One Zero Is Given $P ( x ) = x ^ { 3 } + 5 x ^ { 2 } - 12 x + 14 ; 1 + i$

question 5

Multiple Choice

For the polynomial, one zero is given. Find all others.
$P ( x ) = x ^ { 3 } + 5 x ^ { 2 } - 12 x + 14 ; 1 + i$

• A) -7,7
• B) 1-i, 7i
• C) 1-i, 7
• D) 1-i,-7