Answer:
9b(5a-c)
Step-by-step explanation:
1) first find the common factor
it is basically to find the similarity between two terms so in 45ab - 9bc what is similar in both terms? Alrite for the first term we have 45ab and in the second we have -9bc so the first thing u see that's similar is b because both of the terms has b. Next what else is common? 9 is common.
- so factor out 9b from the expression
As u factor it out u are basically dividing it with the factor
