(x-9)(x^7+x^6+x^5+x^4+x^3+x^2+x+1)=0

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Solution for (x-9)(x^7+x^6+x^5+x^4+x^3+x^2+x+1)=0 equation: 


Simplifying
(x + -9)(x7 + x6 + x5 + x4 + x3 + x2 + x + 1) = 0

Reorder the terms:
(-9 + x)(x7 + x6 + x5 + x4 + x3 + x2 + x + 1) = 0

Reorder the terms:
(-9 + x)(1 + x + x2 + x3 + x4 + x5 + x6 + x7) = 0

Multiply (-9 + x) * (1 + x + x2 + x3 + x4 + x5 + x6 + x7)
(-9(1 + x + x2 + x3 + x4 + x5 + x6 + x7) + x(1 + x + x2 + x3 + x4 + x5 + x6 + x7)) = 0
((1 * -9 + x * -9 + x2 * -9 + x3 * -9 + x4 * -9 + x5 * -9 + x6 * -9 + x7 * -9) + x(1 + x + x2 + x3 + x4 + x5 + x6 + x7)) = 0
((-9 + -9x + -9x2 + -9x3 + -9x4 + -9x5 + -9x6 + -9x7) + x(1 + x + x2 + x3 + x4 + x5 + x6 + x7)) = 0
(-9 + -9x + -9x2 + -9x3 + -9x4 + -9x5 + -9x6 + -9x7 + (1 * x + x * x + x2 * x + x3 * x + x4 * x + x5 * x + x6 * x + x7 * x)) = 0
(-9 + -9x + -9x2 + -9x3 + -9x4 + -9x5 + -9x6 + -9x7 + (1x + x2 + x3 + x4 + x5 + x6 + x7 + x8)) = 0

Reorder the terms:
(-9 + -9x + 1x + -9x2 + x2 + -9x3 + x3 + -9x4 + x4 + -9x5 + x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x + 1x = -8x
(-9 + -8x + -9x2 + x2 + -9x3 + x3 + -9x4 + x4 + -9x5 + x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x2 + x2 = -8x2
(-9 + -8x + -8x2 + -9x3 + x3 + -9x4 + x4 + -9x5 + x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x3 + x3 = -8x3
(-9 + -8x + -8x2 + -8x3 + -9x4 + x4 + -9x5 + x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x4 + x4 = -8x4
(-9 + -8x + -8x2 + -8x3 + -8x4 + -9x5 + x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x5 + x5 = -8x5
(-9 + -8x + -8x2 + -8x3 + -8x4 + -8x5 + -9x6 + x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x6 + x6 = -8x6
(-9 + -8x + -8x2 + -8x3 + -8x4 + -8x5 + -8x6 + -9x7 + x7 + x8) = 0

Combine like terms: -9x7 + x7 = -8x7
(-9 + -8x + -8x2 + -8x3 + -8x4 + -8x5 + -8x6 + -8x7 + x8) = 0

Solving
-9 + -8x + -8x2 + -8x3 + -8x4 + -8x5 + -8x6 + -8x7 + x8 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.

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