X^2-18-2=0

Solution for X^2-18-2=0 equation:

Simplifying
X2 + -18 + -2 = 0

Reorder the terms:
-18 + -2 + X2 = 0

Combine like terms: -18 + -2 = -20
-20 + X2 = 0

Solving
-20 + X2 = 0

Solving for variable 'X'.

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

Add '20' to each side of the equation.
-20 + 20 + X2 = 0 + 20

Combine like terms: -20 + 20 = 0
0 + X2 = 0 + 20
X2 = 0 + 20

Combine like terms: 0 + 20 = 20
X2 = 20

Simplifying
X2 = 20

Take the square root of each side:
X = {-4.472135955, 4.472135955}