emitereal
emitereal emitereal
  • 13-06-2020
  • Mathematics
contestada

solve the quadratic equation x2+2x+3​

Respuesta :

pranaveada pranaveada
  • 13-06-2020

Answer:

-2+ sqrt(8)i or -2-sqrt(8)i

Step-by-step explanation:

Answer Link
Аноним Аноним
  • 13-06-2020

Answer:

[tex]x=i\sqrt{2} -1, x=-i\sqrt{2}-1[/tex]

Step-by-step explanation:

Hoping the equation is [tex]x^2+2x+3 = 0[/tex]

Rewrite so I can complete the square:

[tex]x^2+2x=-3[/tex]

Take the square of half of 2 and square.

[tex]x^2+2x+1=-2[/tex]

[tex](x+1)^2=-2[/tex]

[tex]x + 1=\sqrt{-2}[/tex]

[tex]x=i\sqrt{2} -1, x=-i\sqrt{2}-1[/tex]

Answer Link

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