Question

Which of the following are the coordinates of the roots of 2x2 - 8 = 0?

Answer 1

2x^2-8=0

Answer 2

divide by 2 and get
\[x^2-4=0\]
\[x^2=4\]
\[x=\pm2\]

Answer 3

Omg. I'm lost. It says coordinates, but I go on wolframalpha and it doesn't give them to me.