2x^2-1=-9

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Solution for 2x^2-1=-9 equation:


Simplifying
2x2 + -1 = -9

Reorder the terms:
-1 + 2x2 = -9

Solving
-1 + 2x2 = -9

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 2x2 = -9 + 1

Combine like terms: -1 + 1 = 0
0 + 2x2 = -9 + 1
2x2 = -9 + 1

Combine like terms: -9 + 1 = -8
2x2 = -8

Divide each side by '2'.
x2 = -4

Simplifying
x2 = -4

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

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

The solution to this equation could not be determined.

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