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Simplifying
x2 + -99999 = 0
Reorder the terms:
-99999 + x2 = 0
Solving
-99999 + x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '99999' to each side of the equation.
-99999 + 99999 + x2 = 0 + 99999
Combine like terms: -99999 + 99999 = 0
0 + x2 = 0 + 99999
x2 = 0 + 99999
Combine like terms: 0 + 99999 = 99999
x2 = 99999
Simplifying
x2 = 99999
Take the square root of each side:
x = {-316.226184874, 316.226184874}