stevennapier18 stevennapier18
  • 10-04-2019
  • Mathematics
contestada

Find the two solutions of x2+9=5.

Respuesta :

BettaRasbora
BettaRasbora BettaRasbora
  • 10-04-2019

Answer:

[tex]x=2i,\:x=-2i[/tex]

Step-by-step explanation:

[tex]x^2+9=5[/tex]

[tex]x^2+9-9=5-9[/tex]

[tex]x^2=-4[/tex]

[tex]x=\sqrt{-4},\:x=-\sqrt{-4}[/tex]

[tex]x=2i,\:x=-2i[/tex]

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