Question

Which of the following is a polynomial with roots 4, –2, and 2i

Answer 1

the one that looks like \((x-4)(x+2)(x+2i)(x-2i)\)

Answer 2

that is , the one that looks like that stuff after you multiply out

Answer 3

these are the possible answers
x3 – 4x2 + 4x – 16

x3 + 4x2 + 4x + 16

x3 + 2x2 + 4x + 8

x3 – 2x2 + 4x – 8

Answer 4

(x + 4)(x - 2i)(x + 2i)
= (x + 4)(x² + 4)
= x³ + 4x² + 4x + 16

Answer 5

see here same question is here
http://answers.yahoo.com/question/index?qid=20110424143827AA7IXkt

Answer 6

oh thanks

Answer 7

hold the phone

Answer 8

@best.shakir its 4, -2, and 2i not -2i

Answer 9

what about -2 as a zero??

Answer 10

must be a typo in the question
solution should be a polynomial of degree 4, not 3

Answer 11

so do u think the last one x3 – 2x2 + 4x – 8 wud be the answer

Answer 12

never mind i have the answer