x^2-100=9

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Solution for x^2-100=9 equation: 


Simplifying
x2 + -100 = 9

Reorder the terms:
-100 + x2 = 9

Solving
-100 + x2 = 9

Solving for variable 'x'.

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

Add '100' to each side of the equation.
-100 + 100 + x2 = 9 + 100

Combine like terms: -100 + 100 = 0
0 + x2 = 9 + 100
x2 = 9 + 100

Combine like terms: 9 + 100 = 109
x2 = 109

Simplifying
x2 = 109

Take the square root of each side:
x = {-10.440306509, 10.440306509}

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