Factor 8x squared - 16x plus 8?

Answer 1

8x2-16x+8=8(x-1)2

How to do it:

First factor out the 8 and you have

8(x2 -2x+1)

look at the 1 and not the only two way to get 1 are by multiplying -1x-1 or 1x1

Only the -1x-1 will work and give us the -2x.