Question

x elevando a 2 menos 8x mais12 igual a 0

Answer 1

x^2 - 8x + 12 = 0
a= 1 b= -8 c= 12
delta= b^2- 4 ac
delta= (-8)^2 - 4× 1× 12
delta= 64 - 48
delta= 16

x'= -(-8) + √16
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2 × (1)

x'= 8 + 4/ 2 》12/2 》x'= 6

x''= -(-8) - √16
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2× 1
x''= 8 - 4/2 》4/2 》x''= 2

Raízes 6 e 2

Espero ter ajudado ✌