Answer:
![3(8+308+3)](https://img.qammunity.org/2021/formulas/mathematics/high-school/yag4e54nay0ly7fd3d12hzqm2280zq1v6i.png)
And we can simplified like this:
![3(319)](https://img.qammunity.org/2021/formulas/mathematics/high-school/6j80nycm62o4o2o8pviecwrafo17zyn53z.png)
Explanation:
By definition the greatest common factor (GCF) of a set of numbers "is the largest factor that all the numbers share"
For this case we have the following numbers: 24,924 and 9, w cna find the factors of each one like this:
Factos of 24 are : 1,2,3,4,6,8,12,24
Factors of 9: 1,3,9
Factors of 924: 1,2,3.4.6,7,11,12,14,21,22,....,924
On this case we can see that the common factors between the 3 numbers are: 1,3 so then the GCF(24,924,9) =3
And then if we take this factor as the common factor for the expression 24+924+9 we got:
![3(8+308+3)](https://img.qammunity.org/2021/formulas/mathematics/high-school/yag4e54nay0ly7fd3d12hzqm2280zq1v6i.png)
And we can simplified like this:
![3(319)](https://img.qammunity.org/2021/formulas/mathematics/high-school/6j80nycm62o4o2o8pviecwrafo17zyn53z.png)