Respuesta :

coco2837
The answer is 3a because the greatest common factor of 12 and 9 is 3 and the greatest common factor of a and a^2 is a so it has to be 3a
gmany

Answer:

3a

Step-by-step explanation:

[tex]12a=\bold{(3)}(4)\bold{(a)}\\\\9a^2=\bold{(3)}(3)\bold{(a)}(a)\\\\GCF(12a,\ 9a^2)=\bold{(3)(a)}=3a[/tex]