Question

what are the solution(s) of ( x^2 - 4 = 0 )?
\\( \bigcirc \\) ( x = -4 ) or ( x = 4 )
\\( \bigcirc \\) ( x = -2 ) or ( x = 2 )
\\( \bigcirc \\) ( x = 2 )
\\( \bigcirc \\) ( x = 4 )

Explanation:

Step1: Rearrange the equation

$x^2 - 4 = 0 \implies x^2 = 4$

Step2: Solve for x

Take square root of both sides: $x = \pm\sqrt{4} = \pm2$

Answer:

$x=-2$ or $x=2$