AQUINOMARI189GO
Respondido

x²+ 5x - 6 = 0.
Me ajuda pfv​

Resposta :

NATHINHA6799GO

x² + 5x - 6 = 0

a = 1

b = 5

c = - 6

∆ = b² - 4 . a . c

∆ = 5² - 4 . 1 . (-6)

∆ = 25 + 24

∆ = 49

x = - b ± √∆

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2a

x' = - 5 - 7

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2 . 1

x' = - 12

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2

x' = - 6

x" = - 5 + 7

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2 . 1

x" = 2

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2

x" = 1

S = {-6 , 1}

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