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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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