Question

$x^{2} +6x-7$

Answer 1

x² + 6x - 7 = 0
Fatorando:
(x + 7)(x - 1) = 0

x + 7 = 0 --->  x' = - 7

x - 1 = 0 --->  x'' = 1


S = {- 7 ; 1}