Question

factor the algebraic expression.
18a + 15

18a + 15 =
(factor completely.)

Explanation:

Step1: Find GCF of 18 and 15

Factors of 18: 1, 2, 3, 6, 9, 18
Factors of 15: 1, 3, 5, 15
GCF is 3.

Step2: Factor out GCF

Divide each term by 3:
$18a \div 3 = 6a$, $15 \div 3 = 5$
So, $18a + 15 = 3(6a + 5)$

Answer:

$3(6a + 5)$