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Simplifying z4 + 3iz2 + 4 = 0 Reorder the terms: 4 + 3iz2 + z4 = 0 Solving 4 + 3iz2 + z4 = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + 3iz2 + -4 + z4 = 0 + -4 Reorder the terms: 4 + -4 + 3iz2 + z4 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3iz2 + z4 = 0 + -4 3iz2 + z4 = 0 + -4 Combine like terms: 0 + -4 = -4 3iz2 + z4 = -4 Add '-1z4' to each side of the equation. 3iz2 + z4 + -1z4 = -4 + -1z4 Combine like terms: z4 + -1z4 = 0 3iz2 + 0 = -4 + -1z4 3iz2 = -4 + -1z4 Divide each side by '3z2'. i = -1.333333333z-2 + -0.3333333333z2 Simplifying i = -1.333333333z-2 + -0.3333333333z2
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