Answer:
[tex]\boxed{ \ x = 2 \ or \ x = -2 \ }[/tex]
Step-by-step explanation:
I understand that you want to solve this equation
[tex]\sqrt{x+2}\sqrt{x-2}=0[/tex]
<=>
[tex]\sqrt{(x+2)(x-2)}=0[/tex]
<=>
[tex](x+2)(x-2)=0[/tex]
<=>
x = 2 or x = -2
hope this helps
if your question is [tex](\sqrt{x}+2)(\sqrt{x}-2) = 0[/tex]
then this is [tex](\sqrt{x})^2-4 = 0\\<=> x = 4[/tex]