kaliethedon kaliethedon
  • 10-04-2019
  • Mathematics
contestada

x^2 + 14 = 18
Algebra

Respuesta :

BettaRasbora
BettaRasbora BettaRasbora
  • 10-04-2019

Answer:

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

Step-by-step explanation:

[tex]x^2+14=18[/tex]

[tex]x^2+14-14=18-14[/tex]

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

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

[tex]\sqrt{4}=2[/tex]

[tex]-\sqrt{4}=-2[/tex]

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

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