4x^4+3x^2+12=0

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Solution for 4x^4+3x^2+12=0 equation:


Simplifying
4x4 + 3x2 + 12 = 0

Reorder the terms:
12 + 3x2 + 4x4 = 0

Solving
12 + 3x2 + 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 + 0.75x2 + x4 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 0.75x2 + -3 + x4 = 0 + -3

Reorder the terms:
3 + -3 + 0.75x2 + x4 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 0.75x2 + x4 = 0 + -3
0.75x2 + x4 = 0 + -3

Combine like terms: 0 + -3 = -3
0.75x2 + x4 = -3

The x term is 0.75x2.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75x2 + 0.140625 + x4 = -3 + 0.140625

Reorder the terms:
0.140625 + 0.75x2 + x4 = -3 + 0.140625

Combine like terms: -3 + 0.140625 = -2.859375
0.140625 + 0.75x2 + x4 = -2.859375

Factor a perfect square on the left side:
(x2 + 0.375)(x2 + 0.375) = -2.859375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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