Respuesta :

X = +8, -8.
A and C both work but they're the same thing

Answer:

x = ± 8

Step-by-step explanation:

given x² = 64 ( take the square root of both sides )

[tex]\sqrt{x^{2} }[/tex] = ± [tex]\sqrt{64}[/tex]

x = ± 8 ← note plus or minus

This is because 8² = 64 and (- 8)² = 64