2x^2+1=-7

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Solution for 2x^2+1=-7 equation:


Simplifying
2x2 + 1 = -7

Reorder the terms:
1 + 2x2 = -7

Solving
1 + 2x2 = -7

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 = -7 + -1

Combine like terms: 1 + -1 = 0
0 + 2x2 = -7 + -1
2x2 = -7 + -1

Combine like terms: -7 + -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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