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

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The discussion focuses on solving the polynomial function f(x) = x^3 + 4x - 6 = 0 using Newton's method. The user initially encountered a mistake in their program but corrected it and used a seed value of 1, successfully finding the solution x = 1.1347. They confirm that this is the only solution to the equation. The conversation emphasizes the effectiveness of Newton's method for finding roots of polynomial functions.
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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