How Do You Solve x^4 + 2x^2 + x + 2 = 0?

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Discussion Overview

The discussion revolves around the polynomial equation x^4 + 2x^2 + x + 2 = 0, focusing on finding its solutions, factoring the polynomial, and determining the existence of real zeros. The scope includes mathematical reasoning and problem-solving techniques.

Discussion Character

  • Mathematical reasoning, Homework-related, Debate/contested

Main Points Raised

  • One participant states that the equation has no real zeros.
  • Another participant suggests that it is possible to factor the polynomial over the integers and discusses the approach to factor a polynomial of degree 4.
  • A participant inquires about how to prove the absence of zeros in the equation.
  • It is mentioned that the absence of zeros will become clear once the polynomial is factored.

Areas of Agreement / Disagreement

Participants express differing views on the existence of real zeros, with one asserting there are none while others focus on the factoring process. The discussion remains unresolved regarding the proof of zeros.

Contextual Notes

Participants have not provided specific assumptions or methods for proving the absence of zeros, and the discussion lacks a complete resolution on the factoring approach.

Caldus
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OK, problem with this equation:

x^4 + 2x^2 + x + 2 = 0

What is/are the solution(s)? I can't figure out how to factor this so that I can find the zeros or whatever...
 
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Hint: It has no Real zeros.
 
it is possible to factor it over the integers.

suppose you have a polynomial P of degree p. you want to factor it as P = Q R where Q and R are polynomials. consider the different degrees Q and R might have if p = 4 as in your case. this consideration will direct the trials and errors when looking for Q and R.
 
How can I prove that I have no zeros?
 
that'll be clear once you factor it.
 

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