Pls someone been stuck on question for 20 min i dont understand will give brainliest pts so pls hurry attached file for question:

What the equation is looking for is the values X needs to have to equal zero

X - 6 = 0
X - 6 (+6)= 0 (+6)
X = 6

X + 2 = 0
X + 2 (-2)= 0(-2)
X = -2

i don't understand what the question is asking for the topmost box though

It would be the second one because it passes the vertical line test