Answer:
6x + 18 → 6(x + 3)
6 + 6x → 6(1 + x)
6(x - 1) → 6x - 6
Explanation:
What you do is use the distributive property on them. let's take the first one as an example. 6x + 18 = 6(x+3)
The distributive property bascially means that you multiply whatever number outside the parenthesis by what's inside of the parenthesis.
SO 6 · x = 6x and 6 · 3 = 18, all together, that equals 6x + 18. See how I distributed the 6 to both the number and the variable?