4x^4+x^2+1=0

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


Simplifying
4x4 + x2 + 1 = 0

Reorder the terms:
1 + x2 + 4x4 = 0

Solving
1 + x2 + 4x4 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
0.25 + 0.25x2 + x4 = 0

Move the constant term to the right:

Add '-0.25' to each side of the equation.
0.25 + 0.25x2 + -0.25 + x4 = 0 + -0.25

Reorder the terms:
0.25 + -0.25 + 0.25x2 + x4 = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.25x2 + x4 = 0 + -0.25
0.25x2 + x4 = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.25x2 + x4 = -0.25

The x term is x2.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.25x2 + 0.25 + x4 = -0.25 + 0.25

Reorder the terms:
0.25 + 0.25x2 + x4 = -0.25 + 0.25

Combine like terms: -0.25 + 0.25 = 0.00
0.25 + 0.25x2 + x4 = 0.00

Factor a perfect square on the left side:
(x2 + 0.5)(x2 + 0.5) = 0.00

Calculate the square root of the right side: 0.00

Break this problem into two subproblems by setting 
(x2 + 0.5) equal to 0.00 and 0.00.

Subproblem 1

x2 + 0.5 = 0.00 Simplifying x2 + 0.5 = 0.00 Reorder the terms: 0.5 + x2 = 0.00 Solving 0.5 + x2 = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = 0.00 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = 0.00 + -0.5 x2 = 0.00 + -0.5 Combine like terms: 0.00 + -0.5 = -0.5 x2 = -0.5 Simplifying x2 = -0.5 Reorder the terms: 0.5 + x2 = -0.5 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.5 + x2 = 0.0 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.

Subproblem 2

x2 + 0.5 = 0.00 Simplifying x2 + 0.5 = 0.00 Reorder the terms: 0.5 + x2 = 0.00 Solving 0.5 + x2 = 0.00 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = 0.00 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = 0.00 + -0.5 x2 = 0.00 + -0.5 Combine like terms: 0.00 + -0.5 = -0.5 x2 = -0.5 Simplifying x2 = -0.5 Reorder the terms: 0.5 + x2 = -0.5 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.5 + x2 = 0.0 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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