we are given
[tex] x^2-4=0 [/tex]
To find solution , we can factor it and then we can solve for x
step-1: Factoring
[tex] x^2-4=0 [/tex]
[tex] (x-2)(x+2)=0 [/tex]
step-2: Solve for x
[tex] (x-2)=0 [/tex]
[tex] x=2 [/tex]
[tex] (x+2)=0 [/tex]
[tex] x=-2 [/tex]
so, option-C and option-F...........Answer
