Let p(z) = z3 + (1 + j) z2 + (2 + j) z + 3, where z is a complex numbe – McqOptions

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1.	Let p(z) = z3 + (1 + j) z2 + (2 + j) z + 3, where z is a complex number.Which one of the following is true?
A.	All the roots cannot be real
B.	conjugate {p(z)} = p(conjugate {z}) for all z
C.	The sum of the roots of p(z) = 0 is a real number
D.	The complex roots of the equation p(z) = 0 come in conjugate pairs
Answer» B. conjugate {p(z)} = p(conjugate {z}) for all z

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