×²+6×+9=0 in Discriminant and nature of the roots

Adagio asked Sep 4, 2022

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Adagio asked Sep 4, 2022

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23 votes

Answer:

D = 0, x = -3

Explanation:

D = b*b - 4ac = 36 - 4*9 = 36 - 36 = 0

x = -b/2a since D = 0, so

x = -6/2 = -3

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