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Simplifying ix2 + -4x + 8 = 0 Reorder the terms: 8 + ix2 + -4x = 0 Solving 8 + ix2 + -4x = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + ix2 + -8 + -4x = 0 + -8 Reorder the terms: 8 + -8 + ix2 + -4x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + ix2 + -4x = 0 + -8 ix2 + -4x = 0 + -8 Combine like terms: 0 + -8 = -8 ix2 + -4x = -8 Add '4x' to each side of the equation. ix2 + -4x + 4x = -8 + 4x Combine like terms: -4x + 4x = 0 ix2 + 0 = -8 + 4x ix2 = -8 + 4x Divide each side by 'x2'. i = -8x-2 + 4x-1 Simplifying i = -8x-2 + 4x-1
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