Question

√√×-4=2? matemática ​

Answer 1

Resposta: x = 20

Explicação passo a passo:

$\sqrt{\sqrt{x-4} }=2\\\\\sqrt[4]{x-4}=2\\ \\(\sqrt[4]{x-4})^{4} =(2)^{4}\\\\x-4=16\\\\x=16+4\\\\x=20$