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Simplifying z4 + -6z3 + 15z2 + -18z + 10 = 0 Reorder the terms: 10 + -18z + 15z2 + -6z3 + z4 = 0 Solving 10 + -18z + 15z2 + -6z3 + z4 = 0 Solving for variable 'z'. The solution to this equation could not be determined.
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