Answer:
Explanation:
Given:
[tex]6ab\text{ + 18a}[/tex]To find:
the greatest common factor
To determine the above, we need to find numbers and terms common to both 6ab and 18a
[tex]\begin{gathered} 6a\text{ is common to both} \\ 6ab\text{ = 6a\lparen b\rparen} \\ 18a\text{ = 6a\lparen3\rparen} \\ \\ 6ab\text{ + 18a = 6a\lparen b + 3\rparen} \\ No\text{ other number is common to b+3 excpet 1} \\ 6a\text{ is factored out, it greatest common factor} \end{gathered}[/tex]The greatest common factor is 6a