0=x^4-8x^3+18x^2-x-28

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Solution for 0=x^4-8x^3+18x^2-x-28 equation: 


Simplifying
0 = x4 + -8x3 + 18x2 + -1x + -28

Reorder the terms:
0 = -28 + -1x + 18x2 + -8x3 + x4

Solving
0 = -28 + -1x + 18x2 + -8x3 + x4

Solving for variable 'x'.

Combine like terms: 0 + 28 = 28
28 + x + -18x2 + 8x3 + -1x4 = -28 + -1x + 18x2 + -8x3 + x4 + 28 + x + -18x2 + 8x3 + -1x4

Reorder the terms:
28 + x + -18x2 + 8x3 + -1x4 = -28 + 28 + -1x + x + 18x2 + -18x2 + -8x3 + 8x3 + x4 + -1x4

Combine like terms: -28 + 28 = 0
28 + x + -18x2 + 8x3 + -1x4 = 0 + -1x + x + 18x2 + -18x2 + -8x3 + 8x3 + x4 + -1x4
28 + x + -18x2 + 8x3 + -1x4 = -1x + x + 18x2 + -18x2 + -8x3 + 8x3 + x4 + -1x4

Combine like terms: -1x + x = 0
28 + x + -18x2 + 8x3 + -1x4 = 0 + 18x2 + -18x2 + -8x3 + 8x3 + x4 + -1x4
28 + x + -18x2 + 8x3 + -1x4 = 18x2 + -18x2 + -8x3 + 8x3 + x4 + -1x4

Combine like terms: 18x2 + -18x2 = 0
28 + x + -18x2 + 8x3 + -1x4 = 0 + -8x3 + 8x3 + x4 + -1x4
28 + x + -18x2 + 8x3 + -1x4 = -8x3 + 8x3 + x4 + -1x4

Combine like terms: -8x3 + 8x3 = 0
28 + x + -18x2 + 8x3 + -1x4 = 0 + x4 + -1x4
28 + x + -18x2 + 8x3 + -1x4 = x4 + -1x4

Combine like terms: x4 + -1x4 = 0
28 + x + -18x2 + 8x3 + -1x4 = 0

The solution to this equation could not be determined.

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