Hello, good afternoon.
I need help with my precalc hw.
we are learning about finding zeros
I don't which method I should use for this problem:
if i is a zero of x^3+3x^2+ix+(4+i)
what do i do? synthetic divison? or long division?
when i did long division i got a werid polynomial with a lot of 'i's in them what do I do with that?
Thanks!
3 answers
Well, looking at the i in the end, you know one root has to be i. Start with it, and do division, I might suggest synthetic division.
what do u mean looking atthe end "you know one root has to be i" what does that mean?
you get
x^2+(3+i)x+(4i-1)
what do i do next?
x^2+(3+i)x+(4i-1)
what do i do next?
1 answer