Which quadratic equation has roots -1+4i and -1-4i ?

Question

A. x^2+2x+2=0
B. 2x^2+x+17=0
C. x^2+2x+17=0
D. 2x^2+x+2=0

I'm having difficulty with this question, but I've settled on C for now. Am I correct?

Answer 1

(x + 1 - 4i)(x + 1 + 4i)

x^2 + x + 4ix + x + 1 + 4i - 4ix - 4i - (4i)^2

Answer 2

−16i^2+x^2+2x+1

But that's not one of my possible answers?

Answer 3

i = √-1 ... i^2 = -1

Answer 4

it’s c :)

Answer 5

B-6-2
A7-
B1 3/2
D
By=
C7.5
A 1
D

C

Answer 6

x's answers to the quiz are correct