lilgoonin
lilgoonin lilgoonin
  • 11-10-2018
  • Mathematics
contestada


Solve the equation.

9x2 + 4 = 0

Respuesta :

tramserran
tramserran tramserran
  • 11-10-2018

Answer: [tex]x = \frac{2}{3}i , -\frac{2}{3}i[/tex]

Step-by-step explanation:

9x² + 4 = 0

       -4   -4

9x²       = -4

   [tex]\frac{9x^{2} }{9} = \frac{-4}{9}[/tex]

    x² = [tex]\frac{-4}{9}[/tex]

   [tex]\sqrt{x^{2} } = \sqrt{-\frac{4}{9} }[/tex]

    [tex]x = +/- \frac{2}{3}i[/tex]

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