14x^4-7x^2=3

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Solution for 14x^4-7x^2=3 equation:


Simplifying
14x4 + -7x2 = 3

Reorder the terms:
-7x2 + 14x4 = 3

Solving
-7x2 + 14x4 = 3

Solving for variable 'x'.

Reorder the terms:
-3 + -7x2 + 14x4 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -7x2 + 14x4 = 0

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

Divide each side by '14'.
-0.2142857143 + -0.5x2 + x4 = 0

Move the constant term to the right:

Add '0.2142857143' to each side of the equation.
-0.2142857143 + -0.5x2 + 0.2142857143 + x4 = 0 + 0.2142857143

Reorder the terms:
-0.2142857143 + 0.2142857143 + -0.5x2 + x4 = 0 + 0.2142857143

Combine like terms: -0.2142857143 + 0.2142857143 = 0.0000000000
0.0000000000 + -0.5x2 + x4 = 0 + 0.2142857143
-0.5x2 + x4 = 0 + 0.2142857143

Combine like terms: 0 + 0.2142857143 = 0.2142857143
-0.5x2 + x4 = 0.2142857143

The x term is -0.5x2.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x2 + 0.0625 + x4 = 0.2142857143 + 0.0625

Reorder the terms:
0.0625 + -0.5x2 + x4 = 0.2142857143 + 0.0625

Combine like terms: 0.2142857143 + 0.0625 = 0.2767857143
0.0625 + -0.5x2 + x4 = 0.2767857143

Factor a perfect square on the left side:
(x2 + -0.25)(x2 + -0.25) = 0.2767857143

Calculate the square root of the right side: 0.526104281

Break this problem into two subproblems by setting 
(x2 + -0.25) equal to 0.526104281 and -0.526104281.

Subproblem 1

x2 + -0.25 = 0.526104281 Simplifying x2 + -0.25 = 0.526104281 Reorder the terms: -0.25 + x2 = 0.526104281 Solving -0.25 + x2 = 0.526104281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x2 = 0.526104281 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x2 = 0.526104281 + 0.25 x2 = 0.526104281 + 0.25 Combine like terms: 0.526104281 + 0.25 = 0.776104281 x2 = 0.776104281 Simplifying x2 = 0.776104281 Take the square root of each side: x = {-0.880967809, 0.880967809}

Subproblem 2

x2 + -0.25 = -0.526104281 Simplifying x2 + -0.25 = -0.526104281 Reorder the terms: -0.25 + x2 = -0.526104281 Solving -0.25 + x2 = -0.526104281 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x2 = -0.526104281 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x2 = -0.526104281 + 0.25 x2 = -0.526104281 + 0.25 Combine like terms: -0.526104281 + 0.25 = -0.276104281 x2 = -0.276104281 Simplifying x2 = -0.276104281 Reorder the terms: 0.276104281 + x2 = -0.276104281 + 0.276104281 Combine like terms: -0.276104281 + 0.276104281 = 0.000000000 0.276104281 + 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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