2x^2-4=-166

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Solution for 2x^2-4=-166 equation:


Simplifying
2x2 + -4 = -166

Reorder the terms:
-4 + 2x2 = -166

Solving
-4 + 2x2 = -166

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 2x2 = -166 + 4

Combine like terms: -4 + 4 = 0
0 + 2x2 = -166 + 4
2x2 = -166 + 4

Combine like terms: -166 + 4 = -162
2x2 = -162

Divide each side by '2'.
x2 = -81

Simplifying
x2 = -81

Reorder the terms:
81 + x2 = -81 + 81

Combine like terms: -81 + 81 = 0
81 + x2 = 0

The solution to this equation could not be determined.

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