((x^2)-28)=0

Solution for ((x^2)-28)=0 equation:

Simplifying
((x2) + -28) = 0
(x2 + -28) = 0

Reorder the terms:
(-28 + x2) = 0

Remove parenthesis around (-28 + x2)
-28 + x2 = 0

Solving
-28 + x2 = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '28' to each side of the equation.
-28 + 28 + x2 = 0 + 28

Combine like terms: -28 + 28 = 0
0 + x2 = 0 + 28
x2 = 0 + 28

Combine like terms: 0 + 28 = 28
x2 = 28

Simplifying
x2 = 28

Take the square root of each side:
x = {-5.291502622, 5.291502622}