x^4+5x^2+49=0

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Solution for x^4+5x^2+49=0 equation:


Simplifying
x4 + 5x2 + 49 = 0

Reorder the terms:
49 + 5x2 + x4 = 0

Solving
49 + 5x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + 5x2 + -49 + x4 = 0 + -49

Reorder the terms:
49 + -49 + 5x2 + x4 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 5x2 + x4 = 0 + -49
5x2 + x4 = 0 + -49

Combine like terms: 0 + -49 = -49
5x2 + x4 = -49

The x term is 5x2.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x2 + 6.25 + x4 = -49 + 6.25

Reorder the terms:
6.25 + 5x2 + x4 = -49 + 6.25

Combine like terms: -49 + 6.25 = -42.75
6.25 + 5x2 + x4 = -42.75

Factor a perfect square on the left side:
(x2 + 2.5)(x2 + 2.5) = -42.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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