Question

Factor completely: 3x − 12
This is prime, right? @amistre64

Answer 1

factor 12 and see what you get

Answer 2

3(x-4)

Answer 3

See,
You can write 12 as 3*4, right?
So,
3x - 12 = 3x - 3*4. Now you put 3 in evidence:
3(x-4)
:]

Answer 4

if you ever have doubt, buy a subscription to mathway.com... not only does it give you the answer, it tells you each step on how to get it so you better understand it.

Answer 5

nevermind, it doesnt cost anything