x^2-216=

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Solution for x^2-216= equation: 


Simplifying
x2 + -216 = 0

Reorder the terms:
-216 + x2 = 0

Solving
-216 + x2 = 0

Solving for variable 'x'.

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

Add '216' to each side of the equation.
-216 + 216 + x2 = 0 + 216

Combine like terms: -216 + 216 = 0
0 + x2 = 0 + 216
x2 = 0 + 216

Combine like terms: 0 + 216 = 216
x2 = 216

Simplifying
x2 = 216

Take the square root of each side:
x = {-14.696938457, 14.696938457}

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