8=-2(x^2+1)

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Solution for 8=-2(x^2+1) equation:


Simplifying
8 = -2(x2 + 1)

Reorder the terms:
8 = -2(1 + x2)
8 = (1 * -2 + x2 * -2)
8 = (-2 + -2x2)

Solving
8 = -2 + -2x2

Solving for variable 'x'.

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

Add '2x2' to each side of the equation.
8 + 2x2 = -2 + -2x2 + 2x2

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

Add '-8' to each side of the equation.
8 + -8 + 2x2 = -2 + -8

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

Combine like terms: -2 + -8 = -10
2x2 = -10

Divide each side by '2'.
x2 = -5

Simplifying
x2 = -5

Reorder the terms:
5 + x2 = -5 + 5

Combine like terms: -5 + 5 = 0
5 + x2 = 0

The solution to this equation could not be determined.

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