2x^2+4-1=0

Solution for 2x^2+4-1=0 equation:

Simplifying
2x2 + 4 + -1 = 0

Reorder the terms:
4 + -1 + 2x2 = 0

Combine like terms: 4 + -1 = 3
3 + 2x2 = 0

Solving
3 + 2x2 = 0

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + 2x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 2x2 = 0 + -3
2x2 = 0 + -3

Combine like terms: 0 + -3 = -3
2x2 = -3

Divide each side by '2'.
x2 = -1.5

Simplifying
x2 = -1.5

Reorder the terms:
1.5 + x2 = -1.5 + 1.5

Combine like terms: -1.5 + 1.5 = 0.0
1.5 + x2 = 0.0

The solution to this equation could not be determined.