x^4+4-20x^2+400=-64

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Solution for x^4+4-20x^2+400=-64 equation:


Simplifying
x4 + 4 + -20x2 + 400 = -64

Reorder the terms:
4 + 400 + -20x2 + x4 = -64

Combine like terms: 4 + 400 = 404
404 + -20x2 + x4 = -64

Solving
404 + -20x2 + x4 = -64

Solving for variable 'x'.

Reorder the terms:
404 + 64 + -20x2 + x4 = -64 + 64

Combine like terms: 404 + 64 = 468
468 + -20x2 + x4 = -64 + 64

Combine like terms: -64 + 64 = 0
468 + -20x2 + x4 = 0

Begin completing the square.

Move the constant term to the right:

Add '-468' to each side of the equation.
468 + -20x2 + -468 + x4 = 0 + -468

Reorder the terms:
468 + -468 + -20x2 + x4 = 0 + -468

Combine like terms: 468 + -468 = 0
0 + -20x2 + x4 = 0 + -468
-20x2 + x4 = 0 + -468

Combine like terms: 0 + -468 = -468
-20x2 + x4 = -468

The x term is -20x2.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20x2 + 100 + x4 = -468 + 100

Reorder the terms:
100 + -20x2 + x4 = -468 + 100

Combine like terms: -468 + 100 = -368
100 + -20x2 + x4 = -368

Factor a perfect square on the left side:
(x2 + -10)(x2 + -10) = -368

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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