7x^4+23x^2+3=0

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Solution for 7x^4+23x^2+3=0 equation:


Simplifying
7x4 + 23x2 + 3 = 0

Reorder the terms:
3 + 23x2 + 7x4 = 0

Solving
3 + 23x2 + 7x4 = 0

Solving for variable 'x'.

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

Divide each side by '7'.
0.4285714286 + 3.285714286x2 + x4 = 0

Move the constant term to the right:

Add '-0.4285714286' to each side of the equation.
0.4285714286 + 3.285714286x2 + -0.4285714286 + x4 = 0 + -0.4285714286

Reorder the terms:
0.4285714286 + -0.4285714286 + 3.285714286x2 + x4 = 0 + -0.4285714286

Combine like terms: 0.4285714286 + -0.4285714286 = 0.0000000000
0.0000000000 + 3.285714286x2 + x4 = 0 + -0.4285714286
3.285714286x2 + x4 = 0 + -0.4285714286

Combine like terms: 0 + -0.4285714286 = -0.4285714286
3.285714286x2 + x4 = -0.4285714286

The x term is 3.285714286x2.  Take half its coefficient (1.642857143).
Square it (2.698979592) and add it to both sides.

Add '2.698979592' to each side of the equation.
3.285714286x2 + 2.698979592 + x4 = -0.4285714286 + 2.698979592

Reorder the terms:
2.698979592 + 3.285714286x2 + x4 = -0.4285714286 + 2.698979592

Combine like terms: -0.4285714286 + 2.698979592 = 2.2704081634
2.698979592 + 3.285714286x2 + x4 = 2.2704081634

Factor a perfect square on the left side:
(x2 + 1.642857143)(x2 + 1.642857143) = 2.2704081634

Calculate the square root of the right side: 1.506787365

Break this problem into two subproblems by setting 
(x2 + 1.642857143) equal to 1.506787365 and -1.506787365.

Subproblem 1

x2 + 1.642857143 = 1.506787365 Simplifying x2 + 1.642857143 = 1.506787365 Reorder the terms: 1.642857143 + x2 = 1.506787365 Solving 1.642857143 + x2 = 1.506787365 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.642857143' to each side of the equation. 1.642857143 + -1.642857143 + x2 = 1.506787365 + -1.642857143 Combine like terms: 1.642857143 + -1.642857143 = 0.000000000 0.000000000 + x2 = 1.506787365 + -1.642857143 x2 = 1.506787365 + -1.642857143 Combine like terms: 1.506787365 + -1.642857143 = -0.136069778 x2 = -0.136069778 Simplifying x2 = -0.136069778 Reorder the terms: 0.136069778 + x2 = -0.136069778 + 0.136069778 Combine like terms: -0.136069778 + 0.136069778 = 0.000000000 0.136069778 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.

Subproblem 2

x2 + 1.642857143 = -1.506787365 Simplifying x2 + 1.642857143 = -1.506787365 Reorder the terms: 1.642857143 + x2 = -1.506787365 Solving 1.642857143 + x2 = -1.506787365 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.642857143' to each side of the equation. 1.642857143 + -1.642857143 + x2 = -1.506787365 + -1.642857143 Combine like terms: 1.642857143 + -1.642857143 = 0.000000000 0.000000000 + x2 = -1.506787365 + -1.642857143 x2 = -1.506787365 + -1.642857143 Combine like terms: -1.506787365 + -1.642857143 = -3.149644508 x2 = -3.149644508 Simplifying x2 = -3.149644508 Reorder the terms: 3.149644508 + x2 = -3.149644508 + 3.149644508 Combine like terms: -3.149644508 + 3.149644508 = 0.000000000 3.149644508 + x2 = 0.000000000 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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