5x^2+4x^4-12=0

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Solution for 5x^2+4x^4-12=0 equation:


Simplifying
5x2 + 4x4 + -12 = 0

Reorder the terms:
-12 + 5x2 + 4x4 = 0

Solving
-12 + 5x2 + 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'.
-3 + 1.25x2 + x4 = 0

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 1.25x2 + 3 + x4 = 0 + 3

Reorder the terms:
-3 + 3 + 1.25x2 + x4 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 1.25x2 + x4 = 0 + 3
1.25x2 + x4 = 0 + 3

Combine like terms: 0 + 3 = 3
1.25x2 + x4 = 3

The x term is 1.25x2.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25x2 + 0.390625 + x4 = 3 + 0.390625

Reorder the terms:
0.390625 + 1.25x2 + x4 = 3 + 0.390625

Combine like terms: 3 + 0.390625 = 3.390625
0.390625 + 1.25x2 + x4 = 3.390625

Factor a perfect square on the left side:
(x2 + 0.625)(x2 + 0.625) = 3.390625

Calculate the square root of the right side: 1.841364983

Break this problem into two subproblems by setting 
(x2 + 0.625) equal to 1.841364983 and -1.841364983.

Subproblem 1

x2 + 0.625 = 1.841364983 Simplifying x2 + 0.625 = 1.841364983 Reorder the terms: 0.625 + x2 = 1.841364983 Solving 0.625 + x2 = 1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x2 = 1.841364983 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x2 = 1.841364983 + -0.625 x2 = 1.841364983 + -0.625 Combine like terms: 1.841364983 + -0.625 = 1.216364983 x2 = 1.216364983 Simplifying x2 = 1.216364983 Take the square root of each side: x = {-1.102889379, 1.102889379}

Subproblem 2

x2 + 0.625 = -1.841364983 Simplifying x2 + 0.625 = -1.841364983 Reorder the terms: 0.625 + x2 = -1.841364983 Solving 0.625 + x2 = -1.841364983 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + x2 = -1.841364983 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + x2 = -1.841364983 + -0.625 x2 = -1.841364983 + -0.625 Combine like terms: -1.841364983 + -0.625 = -2.466364983 x2 = -2.466364983 Simplifying x2 = -2.466364983 Reorder the terms: 2.466364983 + x2 = -2.466364983 + 2.466364983 Combine like terms: -2.466364983 + 2.466364983 = 0.000000000 2.466364983 + 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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