Question

determine a raiz : F
$(x) = - x2 + 36$

Answer 1

$- {x}^{2} + 36 = 0 \\ - {x}^{2} = - 36 \\ {x}^{2} = 36 \\ x = \sqrt{36} = 6 \\ \\ ou \\ \\ x = - \sqrt{36} = - 6$


As raízes são -6 e 6.