Question

X elevado a 2 +6x+8 Resposta Urgente, Me Ajudem Por Favor

Answer 1

x²+6x+8=0

a= 1

b = 6

c = 8

delta = b² -4ac

delta = 6² - 4 * 1 * 8

delta = 36 - 32 = 4

x = - b ± √delta / 2a

x = - 6 ± √4 / 2

x = - 6 ± 2 / 2

x1 = - 6 + 2 /2

x1 = -4/2 = -2

x2 = -6 - 2 / 2

x2 = - 8 / 2

x2 = -4