Find the solution of f(x)=x^3+4x- 6=0

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  • Thread starter Thread starter albert391212
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Discussion Overview

The discussion revolves around finding the solution to the polynomial equation f(x) = x^3 + 4x - 6 = 0. Participants explore methods for solving this equation, including numerical approaches.

Discussion Character

  • Homework-related, Mathematical reasoning

Main Points Raised

  • One participant requests assistance in finding the solution to the polynomial function and mentions using Newton's method and a program in Excel.
  • Another participant corrects a previous mistake in their program and reports obtaining a solution of x = 1.1347, asserting that there is only one solution.
  • A third participant confirms the reported solution as correct and inquires about the original question.

Areas of Agreement / Disagreement

There is a reported solution of x = 1.1347, but the discussion does not explore alternative solutions or methods, leaving the overall resolution of the problem somewhat limited.

Contextual Notes

The discussion does not address potential limitations of the numerical method used or the assumptions underlying the polynomial's behavior.

Who May Find This Useful

Participants interested in numerical methods for solving polynomial equations or those seeking assistance with similar mathematical problems may find this discussion relevant.

albert391212
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Please find the solution of polynomial function :
$$f(x)=x^3+4x- 6=0$$
I use Newton's method to solve it
and I also write a program (using excel) for help$$$$$$$$
 
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Albert391212 said:
https://www.physicsforums.com/attachments/11796
sorry I mistype the function in my program
I tried again using the correct function and put seed 1 , and get the answer x=1.1347
there is only one solution
x=1.1347
1650710371666.png
 
That's the correct solution. What is your question?

-Dan
 

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