The expression written in the image is:

$a^3 - 2ab + ab^2 - 2b$

Would you like me to simplify or factor this expression? Or do you need help with a particular operation? Let me know if you want the solution broken down in detail.

Here are 5 related questions to expand on this:

1. How can we factor an expression like $a^3 - 2ab + ab^2 - 2b$?
2. What are common techniques for simplifying polynomial expressions?
3. How do we identify like terms in algebraic expressions?
4. How can factoring be applied to solve equations?
5. What are the properties of exponents and how do they apply here?

Tip: Grouping terms is often a useful first step in factoring complex expressions.