Answer:
I think using factoring method would be the best because
Explanation:
1) x^2-6=0
2) Factor out the X. x*(x-6)=0
3) x* (x - 6) =0 When the product of factors equal zero at least one factor is zero.
x=0
x-6=0
4)Solve for "x-6=0" for X. Move constant to the right by adding its opposite to both sides
x-6 +6 = 0 +6
Eliminate the opposites
x - 6 + 6 = 0 + 6
x= 0+6
x=6
5) the solutions are x1=0 and x2=6