MMORPG Gamer Community

Go Back   ggFTW Forum > Off Topic > Life & Relationships > Homework Help

Perfect World
Looking for a new MMO?


Perfect World



LinkBack Thread Tools Display Modes
01-06-2011   #1 (permalink)
Dragon NestLuniaDungeon Fighter Online
Join Date: Aug 2007
Posts: 619
iTrader: (0)
Pathos has disabled reputation
Default [Precalculus] Finding the Zeros of a Function

Given the polynomial and a zero, find the other zeros.

g(x) = 4x^3 + 23x^2 + 34x - 10

Given Zero: -3 + i

I am stuck on this problem. I know if -3 + i is zero, then
(x - (-3 + i)) and (x - (-3 - i)) are factors. I multiplied those together to get x^2 + 6x + 1. I used long division to divide the original function by x^2 + 6x + 1, but that did not help.

I also made a rational zero list and did synthetic division with the hope of finding a zero, but I could not find a zero by that method too. Could someone help me?

EDIT: Please disregard this thread. I made an error when using synthetic division with 1/4 as the possible zero. Thus, 1/4 is the other zero along with the two mentioned above. >_<

Last edited by Pathos; 01-06-2011 at 06:44 PM. Reason: Minor math mistake.
Get rid of this ad by registering for our community.


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Wizard 101
Need a new browser game?


Wizard 101


Hide this banner by registering for our community.