Question

3x²-2x-1=0 por favor me ajuda

Answer 1

Resposta:

faz formula de bhaskara

Answer 2

Resposta:

a= 3

b= -2

c= -1

x= -(-2)+-√(-2)²-4.3.(-1)

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2.3

x= 2+-√4+12

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6

x= 2+-√16

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6

x= 2+-4

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6

x1= 2+4 = 6 = 1

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6 6

x2= 2-4 = -2

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6 6

S {-2 : 6 , 1}