Posted by Samya on Tuesday, October 14, 2008 at 4:06pm.
Hello, good afternoon.
I need help with my precalc hw.
we are learning about finding zeros
I dont 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?
- Precalc - bobpursley, Tuesday, October 14, 2008 at 4:38pm
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.
- Precalc - Samya, Tuesday, October 14, 2008 at 4:39pm
what do u mean looking atthe end "you know one root has to be i" what does that mean?
- Precalc - Samya, Tuesday, October 14, 2008 at 4:42pm
what do i do next?
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