How can I solve single nonlinear equation

How can I solve the following equation using Matlab, 6.84e24X^1.8164+9.95E13*X+1=0, Could you please help with syntax?

Answer 1

[Aarti Dwivedi]

func = @(x) coeff1*x.^exp1 + coeff2*x.exp2 + b;
x0 = 1; % starting point
roots = fzero(func,x0)

In the above code snippet, you can define your function, choose a starting point and fzero will give you the roots. It is generally a good idea to plot your function to get an idea of what it looks like. You can do that in the following manner:

x_interval = -10:10
fplot(func,x_interval)

[Anwar]

Thanks for your reply, I have tried the following,

func = @(x) 6.84E24*x^(1.8164) + 9.95E13*x +1;
x0 = 1; % starting point
roots = fzero(func,x0)

with no apparent luck

[Walter Roberson]

There is no real-valued solution for

6.84e24X^1.8164+9.95E13*X+1=0

Consider that if X is positive then all of the terms are positive and so the equation cannot be equal to 0. But if X is negative and real-valued, then you have a negative number raised to a fractional power, which is something that is defined as returning a complex result.

[Anwar]

Many thanks, Roberson, for highlighting that, I missed that and was trying to solve in different ways.

Thank you once again.