X^2-5-84=0

Solution for X^2-5-84=0 equation:

Simplifying
X2 + -5 + -84 = 0

Reorder the terms:
-5 + -84 + X2 = 0

Combine like terms: -5 + -84 = -89
-89 + X2 = 0

Solving
-89 + X2 = 0

Solving for variable 'X'.

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

Add '89' to each side of the equation.
-89 + 89 + X2 = 0 + 89

Combine like terms: -89 + 89 = 0
0 + X2 = 0 + 89
X2 = 0 + 89

Combine like terms: 0 + 89 = 89
X2 = 89

Simplifying
X2 = 89

Take the square root of each side:
X = {-9.433981132, 9.433981132}