[tex]\implies {\blue {\boxed {\boxed {\purple {\sf { \: x = ±8}}}}}}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}[/tex]
➺ [tex] {x}^{2} = 64[/tex]
➺ [tex] \: x = \sqrt{64} [/tex]
➺ [tex] \: x = \sqrt{8 \times 8} [/tex]
➺ [tex] \: x = \sqrt{ ({8})^{2} } [/tex]
➺ [tex] \: x = ±8[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]