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Encontre as raízes e os vértices das seguintes funções ; x2 +2x+3=0

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x² + 2x + 3 = 0

a=1, b=2, c=3

x =
(-b)/(2a) = (-2)/(2(1)) = (-2)/(2) = -1

f(-1) = (-1)² + 2(-1) + 3

= 1 - 2 + 3

= 4 - 2

= 2

Answer: vertex = (-1, 2)

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