fsolve to solve 5th order polynomial

I would like to solve the following polynomial numerically for r:

I am trying to use fzero as follows:

r= (5/(r^2*9))- ((2)/(9*(6-r)^2))
x0 = 10; % some initial point
x = fzero(r,x0)

How can this be solved using fzero?

Answer 1

[jojo]

This works.

fun=@(r) (5/(r^2*9))- ((2)/(9*(6-r)^2))-r;
x0 = 10; % some initial point
x = fsolve(fun,x0)

Answer 2

[Walter Roberson]

You have an equation of the form A=B. Subtract B from both sides giving an equation of the form (A) - (B) = 0. Now you can fsolve