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The question in the image asks to fully factorise the expression \( 3x + 6 \).

To factorise this expression:

1. **Identify the common factor**: Both terms in the expression \( 3x + 6 \) have a common factor of 3.
   
2. **Factor out the common factor**: 
   \[
   3x + 6 = 3(x + 2)
   \]

Thus, the correct factorised form is \( 3(x + 2) \), which corresponds to the second option in the list.

The current selection, \( 3(x + 6) \), is incorrect.

Would you like further explanation or have any questions?

### Related Questions:
1. How do you factorise quadratic expressions?
2. What is the process to fully factorise higher-degree polynomials?
3. How do you solve equations after factorising?
4. What does it mean to factor out the greatest common factor (GCF)?
5. How do you expand factored expressions to verify the result?

**Tip**: Always check your factorisation by expanding the terms back out to ensure you get the original expression!

Learn how to factorise the algebraic expression 3x + 6 by identifying the greatest common factor. This problem helps students understand basic algebraic factorisation and the GCF concept, suitable for Grades 6-8.

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