Question

Equaçao de 2° grau incompleta x²-36=0

Answer 1

x^2-36=0
x^2=0+36
x^2=36
x= raiz de 36
x=-/+ 6
S={-6, +6}

Answer 2

$x^{2} -36=0\to \\\\ x^{2} =36\to \\\\x=\pm \sqrt{36} \to \\\\ x=\pm~6\\\\\\ \boxed{S=\{-6~;~6\}}$