david838843 david838843
  • 15-04-2019
  • Mathematics
contestada

what is the solution of the equation
[tex] \sqrt{x - 2} = x - 4[/tex]
​

Respuesta :

Аноним Аноним
  • 15-04-2019

Answer:

[tex]\boxed{\bold{x=6}}[/tex]

Step By Step Explanation:

Expand [tex]\bold{\left(\sqrt{x-2}\right)^2: \ x-2}[/tex]

Expand [tex]\bold{\left(x-4\right)^2: \ x^2-8x+16}[/tex]

[tex]\bold{x-2=x^2-8x+16}[/tex]

Solve [tex]\bold{x-2=x^2-8x+16: \ x=6,\:x=3}[/tex]

[tex]\bold{x=6,\:x=3}[/tex]

Verify Solutions;

x = 6 - True

x = 3 - False

[tex]\bold{x=6}[/tex]

Regards,

  Mordancy

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