Solve for x over the real numbers:
sqrt(2 x+4) = 0
Eliminate the exponent.
Square both sides:
2 x+4 = 0
Factor the left hand side.
Factor constant terms from the left hand side:
2 (x+2) = 0
Divide both sides by a constant to simplify the equation.
Divide both sides by 2:
x+2 = 0
