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Abreu13
@Abreu13
November 2019
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Qual o resultado da equação x²-5x+6=0
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AriaVitiello
∆= b² - 4ac
∆= (-5)² - (4 x 1 x 6)
∆= 25 - 24
∆= 1
x= (-b±√∆)/2a
x=-(-5) ± √1) / 2 x 1
x= ( 5 ± 1) / 2
x'= (5+1) / 2
x'= 6 / 2 = 3
x"= (5 - 1) / 2
x"= 4 / 2 = 2
Solução:
x' = 3
X"= 2
2 votes
Thanks 2
walterpradosamp
X² - 5x + 6 = 0 a=1 b= -5 c=6 Δ= b²-4ac Δ=(-5)²-4.1.6
Δ = 25 - 24 Δ= 1
-b +-√Δ -(-5) +-√1 5+-1
x = ------------- = ------------------ = ---------------
2a 2.1 2
x' = 5+1/2 = 3
{ resposta
x'' = 5-1/2 = 2
0 votes
Thanks 0
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Lista de comentários
∆= (-5)² - (4 x 1 x 6)
∆= 25 - 24
∆= 1
x= (-b±√∆)/2a
x=-(-5) ± √1) / 2 x 1
x= ( 5 ± 1) / 2
x'= (5+1) / 2
x'= 6 / 2 = 3
x"= (5 - 1) / 2
x"= 4 / 2 = 2
Solução:
x' = 3
X"= 2
Δ = 25 - 24 Δ= 1
-b +-√Δ -(-5) +-√1 5+-1
x = ------------- = ------------------ = ---------------
2a 2.1 2
x' = 5+1/2 = 3
{ resposta
x'' = 5-1/2 = 2