x^4+4x^3-20x^2+400=0

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Solution for x^4+4x^3-20x^2+400=0 equation: 


Simplifying
x4 + 4x3 + -20x2 + 400 = 0

Reorder the terms:
400 + -20x2 + 4x3 + x4 = 0

Solving
400 + -20x2 + 4x3 + x4 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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