Respuesta :
[tex]x^2=64\to x=\pm\sqrt{64}\\\\\boxed{x=-8\ \vee\ x=8}\\\\\text{because}\ (-8)^2=8^2=64[/tex]
Answer: B. -8, 8
Here is your answer:
x^2 = 64
8 × 8 = 64
8 ÷ 64 = 8
-8 ÷ -64 = 8
= -8, 8
Therefore the answer is option B "-8, 8."
Hope this helps!
~Nonportrit