Answer:
6 x a number - 9 = factored
In this case, since the number is not declared as a specific number, this is the key to us factoring.
Like the number could be 6. ↓
Factoring:
[tex]6*6-9=27\\6*3-9=9\\6*9-9=45[/tex]
bonus even factor:
[tex]6*2-9=3[/tex]
These are factors and Least common multiples of 6 and 9.
Because 9 and 3 show up during half of the problem, and these are related to 6 and 9, the parents, we could measure this on a mathematical scale that this proves the factors correct.
There are other ways to factor this. See comments.
