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Bot GPT 4-o mini To factor the expression \( 9z + 18 \) using the greatest common factor (GCF), first identify the GCF of the terms in the expression.
The terms are:
- \( 9z \)
- \( 18 \)
The GCF of \( 9 \) and \( 18 \) is \( 9 \).
Now, factor out the GCF from the expression:
\[
9z + 18 = 9(z + 2)
\]
So, the factored form of \( 9z + 18 \) is:
\[
9(z + 2)
\]