How can I factor a cubic equation?

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    Cubic Factoring
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Homework Help Overview

The original poster presents a cubic equation derived from a quartic function, specifically g(x) = x^4 - 2x^3 - 3x^2 + 2x + 2, and seeks assistance in factoring the resulting polynomial after applying synthetic division.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Some participants suggest testing binomial divisors such as (x+1), (x-1), (x+2), and (x-2) as potential factors. Others reference the Rational Root Theorem as a basis for these choices.

Discussion Status

Participants are actively exploring possible factors and discussing the rationale behind their choices. There is an exchange of ideas, but no consensus has been reached regarding the next steps in the factoring process.

Contextual Notes

The original poster has already performed synthetic division, which may influence the subsequent factoring attempts. The discussion does not clarify if any specific constraints or rules apply to the homework assignment.

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Homework Statement



g(x)= x^4-2x^3-3x^2+2x+2

Homework Equations





The Attempt at a Solution



After using synthesized division, got
x^3-x^2-4x-2

I need help in factoring from here please
 
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I would try binomial divisors of (x+1), (x-1), (x+2), and (x-2).
 
The reason for the choice of the factors above are from the http://en.wikipedia.org/wiki/Rational_root_theorem" , in case you were wondering.
 
Last edited by a moderator:
Thank you for the help!
 

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