Answer:
6 (4a-3b)
Step-by-step explanation:
24a - 18b
24a = 4*6*a = 2*2*2*3*a
18b = 3*6*b = 3*2*3*b
The common factors are 2*3, which is 6
What remains is inside the parentheses
6 (2*2*a -3b)