The equation visible in the image is:
$2x^2 + 4x - 9$

This looks like a quadratic expression in $x$. If you are looking to solve this equation or simplify it further, let me know what you'd like to do with it! Some options could be solving for $x$, factoring, or analyzing the function's graph.

Would you like further details on any of these? Here are five related questions you might explore:

1. Do you want to solve $2x^2 + 4x - 9 = 0$?
2. How can this quadratic expression be factored (if possible)?
3. What is the discriminant of this quadratic equation?
4. Would you like to find the vertex of the quadratic function?
5. Are you interested in graphing this quadratic equation?

Tip: The discriminant of a quadratic equation helps determine how many real solutions it has.