6.4=x+x^2+x^4+x^8

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Solution for 6.4=x+x^2+x^4+x^8 equation: 


Simplifying
6.4 = x + x2 + x4 + x8

Solving
6.4 = x + x2 + x4 + x8

Solving for variable 'x'.

Reorder the terms:
6.4 + -1x + -1x2 + -1x4 + -1x8 = x + -1x + x2 + -1x2 + x4 + -1x4 + x8 + -1x8

Combine like terms: x + -1x = 0
6.4 + -1x + -1x2 + -1x4 + -1x8 = 0 + x2 + -1x2 + x4 + -1x4 + x8 + -1x8
6.4 + -1x + -1x2 + -1x4 + -1x8 = x2 + -1x2 + x4 + -1x4 + x8 + -1x8

Combine like terms: x2 + -1x2 = 0
6.4 + -1x + -1x2 + -1x4 + -1x8 = 0 + x4 + -1x4 + x8 + -1x8
6.4 + -1x + -1x2 + -1x4 + -1x8 = x4 + -1x4 + x8 + -1x8

Combine like terms: x4 + -1x4 = 0
6.4 + -1x + -1x2 + -1x4 + -1x8 = 0 + x8 + -1x8
6.4 + -1x + -1x2 + -1x4 + -1x8 = x8 + -1x8

Combine like terms: x8 + -1x8 = 0
6.4 + -1x + -1x2 + -1x4 + -1x8 = 0

The solution to this equation could not be determined.

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