( 1 / (x^2 + 2) ) - x = 0

I am searching for x, but having a hard time solving the equation.

Have multiplied the left side of the equal sign with (x^2 + 2) and got:

1 - (x^3 + 2x) = 0

The same thing with the equation

ln(x^2 + 2) - x = 0

How do i solve x?