Solve 4th order trial n error method

  • Context: Undergrad 
  • Thread starter Thread starter niwde
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Discussion Overview

The discussion centers around solving a 4th order algebraic equation using the trial and error method. Participants explore different approaches to finding the roots of the equation, which is presented as 3s^4 + 10s^3 + 21s^2 + 24s - 16 = 0.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested, Mathematical reasoning

Main Points Raised

  • One participant seeks advice on applying the trial and error method to solve the given 4th order equation.
  • Another participant questions the relevance of differential equations in this context, suggesting a misunderstanding of the problem.
  • A third participant recommends using the quartic formula instead of the trial and error method.
  • A later reply clarifies that the equation is not a differential equation and describes the trial and error method as guessing values for roots and dividing the polynomial accordingly.

Areas of Agreement / Disagreement

Participants express differing opinions on the best method to solve the equation, with some advocating for trial and error and others suggesting the quartic formula. The discussion remains unresolved regarding the preferred approach.

Contextual Notes

There is a lack of consensus on the effectiveness of the trial and error method versus the quartic formula, and participants have not fully explored the implications of their suggested methods.

niwde
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Hi, anyone can advise how to solve a 4th order equation with trial and error method?

This is the equation:

3s^4 + 10s^3 + 21s^2 + 24s - 16 = 0
 
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I'm kinda new to DE's, but where's the ds/dy?
 
Forget trial and error, use the quartic formula.
 
Yeah, this isn't a differential equation, just an algebraic quartic equation.

I haven't heard of Trial and Error in a while but I think it is something like guessing values for which this equation is true such as c and then dividing the original equation by s-c and repeating this until you have all four roots.
 

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