x^4+7x^2+14=0

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Solution for x^4+7x^2+14=0 equation:


Simplifying
x4 + 7x2 + 14 = 0

Reorder the terms:
14 + 7x2 + x4 = 0

Solving
14 + 7x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-14' to each side of the equation.
14 + 7x2 + -14 + x4 = 0 + -14

Reorder the terms:
14 + -14 + 7x2 + x4 = 0 + -14

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

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

The x term is 7x2.  Take half its coefficient (3.5).
Square it (12.25) and add it to both sides.

Add '12.25' to each side of the equation.
7x2 + 12.25 + x4 = -14 + 12.25

Reorder the terms:
12.25 + 7x2 + x4 = -14 + 12.25

Combine like terms: -14 + 12.25 = -1.75
12.25 + 7x2 + x4 = -1.75

Factor a perfect square on the left side:
(x2 + 3.5)(x2 + 3.5) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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