+14 As you can see in the sqaure roots we can extract the x^2's, as \sqrt{x^2} = x, we can do the same with the 4 and our equation(s) become:
2x + x = 6 + 3x (1)
-2x + x = 6 + 3x (2)
2x - x = 6 + 3x (3)
-2x - x = 6 + 3x (4)
!! Notice the signs as (-2)^2 = (2)^2, and the prblem is asking us to find all values of x !!
Solving the equations we get that x=:
(1): x = no solution
(2): x = -3/2
(3): x = -3
(4): x = -1
So our answer is -3, -1, and -3/2! 
Hope this helped!
Other user, if you see a mistake please reply with your answer! I make mistakes!!
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