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Simplifying z4 + 2iz2 + -1 = 0 Reorder the terms: -1 + 2iz2 + z4 = 0 Solving -1 + 2iz2 + z4 = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 2iz2 + 1 + z4 = 0 + 1 Reorder the terms: -1 + 1 + 2iz2 + z4 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + 2iz2 + z4 = 0 + 1 2iz2 + z4 = 0 + 1 Combine like terms: 0 + 1 = 1 2iz2 + z4 = 1 Add '-1z4' to each side of the equation. 2iz2 + z4 + -1z4 = 1 + -1z4 Combine like terms: z4 + -1z4 = 0 2iz2 + 0 = 1 + -1z4 2iz2 = 1 + -1z4 Divide each side by '2z2'. i = 0.5z-2 + -0.5z2 Simplifying i = 0.5z-2 + -0.5z2
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