Question

Resolva as equaçoes de 2 grau imcompletas a) x²-36=0

Answer 1

x²=36
x=√36
x=+-6
esta e a respsota..

Answer 2

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