can't for the life of me undestand this

[Prussian to the Iron]

I think I got a nice way to explain a double root here.

(x-2)^2=(x-2)(x-2)=0 . Gives one 2 for the first paranthesis (root 1) and a second 2 for the second (root 2) paranthesis. They just happen to be the same number.

Compare to (x-1)(x-3)=0 => (1 (root 1), 3 (root 2))

so in that example the double root would be....

1,???
and
3,???

correct?