Resposta:
[tex]\boxed{\red{ \sf{ x_{1} = 8 }}} \\ \boxed{\red{ \sf{ x_{2} = - 8 }}}[/tex]
Explicação passo-a-passo:
[tex]\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } \: \: \mathsf {OI, TUDO \: \: J\acute{O}IA \: ? \: \:\blue {{ _{\heartsuit} } \heartsuit_{\heartsuit} } }[/tex]
[tex] \sf{ {x}^{2} = 64} \\ \sf{x = \pm \sqrt{64} } \\ \sf{x = \pm8 } \\ \boxed{\red{ \sf{ x_{1} = 8 }}} \\ \boxed{\red{ \sf{ x_{2} = - 8}}}[/tex]
[tex]\mathcal{ATT : ARMANDO}[/tex]
[tex]\mathfrak{\small03\diagup01\diagup2021} \\ \mathfrak{\small{3} :{11} \: \: pm}[/tex]
