B is the right choice.
You move the point to two spaces right, making 19.28 (percent).
X=10 that how u would get the 12 and the 2
Simplifying this, we get:
(x+4)(x-4) = 0
Now, to get 0, we can replace x for one of these things to make 0, so:
x can either be 4, or -4