The expression given in the image is:

$a^3 - 3a + 2$

Would you like a detailed explanation on factoring this polynomial or any specific information related to it?

Here are some follow-up questions that might interest you:

1. How can we factor the cubic polynomial $a^3 - 3a + 2$?
2. What are the roots of the polynomial $a^3 - 3a + 2$?
3. How do we find the derivative of $a^3 - 3a + 2$?
4. Can the Rational Root Theorem be applied to $a^3 - 3a + 2$?
5. How does the polynomial $a^3 - 3a + 2$ behave graphically?
6. What are the critical points of the function $f(a) = a^3 - 3a + 2$?
7. How can synthetic division be used to factor $a^3 - 3a + 2$?
8. What is the importance of finding the real and complex roots of cubic polynomials?

Tip: When solving polynomial equations, checking for rational roots first can simplify the problem significantly, especially with polynomials of higher degrees.