The expression you provided is:

$6ab + a$

This expression cannot be simplified further because the two terms $6ab$ and $a$ are not like terms (they don’t share the same variables). However, you can factor out $a$, which appears in both terms, to get:

$a(6b + 1)$

Would you like more details on factoring, or do you have any questions?

Here are five related questions for further practice:

1. How would you factor $3ac + 9a$?
2. What is the result of factoring $5xy + 10x$?
3. Can you simplify the expression $7x^2 + 14x$?
4. How do you expand the factored form $2x(3y + 4)$?
5. How would you simplify $4mn + 8m$?

Tip: Always check for common factors when simplifying or factoring expressions.