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

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

Answer by ikleyn(52800)   (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                         =  = +/- 14.


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

Solved.



RELATED QUESTIONS

Solve using the square root property: 2x2 =... (answered by fractalier)
Solve using the square root property: 2x2 – 5 = 93 (answered by jim_thompson5910)
Solve using the square root property: 2x2 = 40 (answered by checkley77)
Solve the equation by the square root property. (z+4)2square=-4 The solution set... (answered by ikleyn)
solve the quadratic equation by using the square root property.... (answered by Theo)
Solve the equation by using the square root property. Simplify all radicals.... (answered by norymae)
2. Solve using the square root property: 2x2 – 35 = 15 (answered by scott8148)
Help with these problems due tomorrow night. Thank you 1. Solve by factoring: x2 – (answered by Nate)
Solve the equation by using the square root property. Express the radical in simplest... (answered by josgarithmetic)