-2x^2-4=8

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Solution for -2x^2-4=8 equation:


Simplifying
-2x2 + -4 = 8

Reorder the terms:
-4 + -2x2 = 8

Solving
-4 + -2x2 = 8

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 = 8 + 4

Combine like terms: -4 + 4 = 0
0 + -2x2 = 8 + 4
-2x2 = 8 + 4

Combine like terms: 8 + 4 = 12
-2x2 = 12

Divide each side by '-2'.
x2 = -6

Simplifying
x2 = -6

Reorder the terms:
6 + x2 = -6 + 6

Combine like terms: -6 + 6 = 0
6 + x2 = 0

The solution to this equation could not be determined.

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