X^2-64=9

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Solution for X^2-64=9 equation: 


Simplifying
X2 + -64 = 9

Reorder the terms:
-64 + X2 = 9

Solving
-64 + X2 = 9

Solving for variable 'X'.

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

Add '64' to each side of the equation.
-64 + 64 + X2 = 9 + 64

Combine like terms: -64 + 64 = 0
0 + X2 = 9 + 64
X2 = 9 + 64

Combine like terms: 9 + 64 = 73
X2 = 73

Simplifying
X2 = 73

Take the square root of each side:
X = {-8.544003745, 8.544003745}

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