How do you factor 6x - 6x -16?

Answer 1

6x-6x=0 so all you have left is -16 and there is nothing to factor. I am guessing you meant

6x2 -6x-16 which is 2(3x2 -2x-8)

The factor pairs for 8 are 1,8 and 2,4. So let's try 1, 8. We know one of them has to be negative. We see it does not work and when we try 2 and 4 they do not work also.

So we cannot factor (3x2 -2x-8) over the integers and we call it prime.

The final answer is 2(3x2 -2x-8)