-2x^2-2=-4

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


Simplifying
-2x2 + -2 = -4

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

Solving
-2 + -2x2 = -4

Solving for variable 'x'.

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

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

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

Combine like terms: -4 + 2 = -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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