Question

Me ajudem pfv
(×+11).(×-11)?

Answer 1

(x + 11) . (x - 11)

x² - 11x + 11x - 121

x² - 121 = 0

x² = 0 + 121

x² = 121

x = √121

x = ± 11

S = {-11 , +11}