2x^2-4=-2

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


Simplifying
2x2 + -4 = -2

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

Solving
-4 + 2x2 = -2

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 = -2 + 4

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

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

Divide each side by '2'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}

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