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Simplifying z4 + 2iz2 + 3 = 0 Reorder the terms: 3 + 2iz2 + z4 = 0 Solving 3 + 2iz2 + z4 = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + 2iz2 + -3 + z4 = 0 + -3 Reorder the terms: 3 + -3 + 2iz2 + z4 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2iz2 + z4 = 0 + -3 2iz2 + z4 = 0 + -3 Combine like terms: 0 + -3 = -3 2iz2 + z4 = -3 Add '-1z4' to each side of the equation. 2iz2 + z4 + -1z4 = -3 + -1z4 Combine like terms: z4 + -1z4 = 0 2iz2 + 0 = -3 + -1z4 2iz2 = -3 + -1z4 Divide each side by '2z2'. i = -1.5z-2 + -0.5z2 Simplifying i = -1.5z-2 + -0.5z2
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