Question

Determine as raizes reais das seguintes funçoes: y=xao quadrado + 2x

Answer 1

y = x² + 2x
Calculando as raízes:
x² + 2x = 0
x.(x+2) = 0
x' = 0
x+2 = 0
x" = -2

Answer 2

Olá Bestt

x² + 2x = 0

x*(x + 2) = 0

x1 = 0

x2 + 2 = 0
x2 = -2

S = (0,2) 

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