Which of the following is a polynomial with roots 2, –3i, and 3i ?

x^3 + 4x^2 + 9x + 24

x^3 – 4x^2 + 9x – 24

x^3 + 2x^2 + 9x + 18

x^3 – 2x^2 + 9x – 18

Question

Which of the following is a polynomial with roots 2, –3i, and 3i ?

x^3 + 4x^2 + 9x + 24

 x^3 – 4x^2 + 9x – 24

 x^3 + 2x^2 + 9x + 18

 x^3 – 2x^2 + 9x – 18

anonymous · Answer

I really need help!!! my exams are tomorrow and I have to have the questions on my study right so I can study

anonymous · Answer

$$(x-2)(x+3i)(x-3i)$$
Now just multiply out your terms to find your equation.

anonymous · Answer

oh ya!! thankss, oh and do you happen to know if I did this right What are the possible number of positive, negative, and complex zeros of f(x) = 2x3 – 5x2 – 6x + 4 ?

 Positive: 2 or 0; Negative: 1; Complex: 2 or 0

anonymous · Answer

i just need the last question ^ confirmed

anonymous · Answer

beeqay whered u go???

anonymous · Answer

Yes you did it right! :)

anonymous · Answer

Looks right...sorry my page wasn't responding.

anonymous · Answer

oh okay thanks a million!