To factor the expression \( 6r - 18 \), we need to find the greatest common factor (GCF) of the terms and factor it out. 

The GCF of \( 6r \) and \( 18 \) is \( 6 \).

So, we factor out \( 6 \) from each term:
\[ 6r - 18 = 6(r - 3) \]

Thus, the factored form of \( 6r - 18 \) is \( 6(r - 3) \).

Would you like any more details or have any questions?

Here are some related questions you might find interesting:
1. How do you find the greatest common factor of two numbers?
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5. Can you factor \( 15r^2 - 45r \)?
6. How do you factor a difference of squares, like \( x^2 - 16 \)?
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**Tip:** When factoring, always start by finding the greatest common factor (GCF) of all the terms. This simplifies the expression and makes further factoring easier.

Learn how to factor the expression 6r - 18 using the greatest common factor (GCF) method. This problem involves key algebraic concepts, including factoring and GCF determination. Suitable for students in Grades 7-9.

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