jadesparks935 jadesparks935

24-09-2018
Mathematics

contestada

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

Respuesta :

tramserran tramserran

24-09-2018

x² + 2x + 3 = 0

a=1, b=2, c=3

x = [tex]\frac{-b}{2a} = \frac{-2}{2(1)} = \frac{-2}{2} = -1[/tex]

f(-1) = (-1)² + 2(-1) + 3

= 1 - 2 + 3

= 4 - 2

= 2

Answer: vertex = (-1, 2)

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