Answer:
3(x+8)
Explanation:
3x+ 24
we need to find out GCF
GCf is greatest common factor
LEts write factors for each term
3x ------> 3 * x
24 -------> 2 * 2* 2* 3
Greatest common factor is 3
So GCf is 3
factor out GCF 3. when we factor out 3 we divide each term by 3
3x + 24

3(x + 8)