Question

qual o valor do x na equaçao -ײ+6×-5=0​

Answer 1

Resposta:

x1 = 1

x2= 5

Answer 2

Resposta:

a = -1

b = 6

c = -5

∆ = b² - 4ac

∆ = (6)² - 4.(-1).(-5)

∆ = 36 - 20 = 16

x = -b ± √∆ / 2a

x = -6 ± √16 / 2.(-1)

x' = -6 + 4 / -2 = -2/-2 = 1

x'' = -6 -4 / -2 = -10/-2 = 5

Os valores de x são 1 e 5.