SOLUTION: Solve the equation by the square root property. 2x2 + 4 = 396

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Question 1172829: Solve the equation by the square root property.
2x2 + 4 = 396

Answer by ikleyn(52795) About Me  (Show Source):
You can put this solution on YOUR website!
.

    2x^2 + 4 = 396


    2x^2     = 396 - 4 = 392

     
     x^2               = 392/2 = 196


     x                         = sqrt%28196%29 = +/- 14.


ANSWER.  There are two solutions  x= 14  and  x= -14.

Solved.