Question

eta utilizando a formula de bhaskara.
b) x2 - 8x + 12 = 0​

Answer 1

Resposta:

x² - 8x + 12 = 0  

delta = b² - 4.a.c  

a = 1

b = -8

c = 12

 

delta = (-8)² - 4.1.12

delta = 64 - 48

delta = 16

 

x = -b ± √delta/2.a  

x = -(-8) ± √16/2.1  

x = 8 ± 4/2  

x = 8 - 4/2 = 4/2 = 2  

x = 8 + 4/2 = 12/2 = 6  

s={ 2, 6 }