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Simplifying z4 + 4z3 + 11z2 + -6z + 90 = 0 Reorder the terms: 90 + -6z + 11z2 + 4z3 + z4 = 0 Solving 90 + -6z + 11z2 + 4z3 + z4 = 0 Solving for variable 'z'. The solution to this equation could not be determined.
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