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

[albert391212]

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$$$$$$$$

 

[albert391212]

 

[albert391212]

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

 

[topsquark]

That's the correct solution. What is your question?

-Dan