x^4-25x^2+160=0

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Solution for x^4-25x^2+160=0 equation:


Simplifying
x4 + -25x2 + 160 = 0

Reorder the terms:
160 + -25x2 + x4 = 0

Solving
160 + -25x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-160' to each side of the equation.
160 + -25x2 + -160 + x4 = 0 + -160

Reorder the terms:
160 + -160 + -25x2 + x4 = 0 + -160

Combine like terms: 160 + -160 = 0
0 + -25x2 + x4 = 0 + -160
-25x2 + x4 = 0 + -160

Combine like terms: 0 + -160 = -160
-25x2 + x4 = -160

The x term is -25x2.  Take half its coefficient (-12.5).
Square it (156.25) and add it to both sides.

Add '156.25' to each side of the equation.
-25x2 + 156.25 + x4 = -160 + 156.25

Reorder the terms:
156.25 + -25x2 + x4 = -160 + 156.25

Combine like terms: -160 + 156.25 = -3.75
156.25 + -25x2 + x4 = -3.75

Factor a perfect square on the left side:
(x2 + -12.5)(x2 + -12.5) = -3.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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