Answer:

Step-by-step explanation:

Adding 9x & 3x gives 12x.

Now taking 4 common from both the terms , we get :-

the 3rd one. hope this helps
Answer: I'm sorry I don't know but il try and calculate the answer for you
Step-by-step explanation:
Answer:
16 and 17
Step-by-step explanation:
16 * 17 = 272