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Simplifying (3i + 7)(7i + -4) = equation Reorder the terms: (7 + 3i)(7i + -4) = equation Reorder the terms: (7 + 3i)(-4 + 7i) = equation Multiply (7 + 3i) * (-4 + 7i) (7(-4 + 7i) + 3i * (-4 + 7i)) = equation ((-4 * 7 + 7i * 7) + 3i * (-4 + 7i)) = equation ((-28 + 49i) + 3i * (-4 + 7i)) = equation (-28 + 49i + (-4 * 3i + 7i * 3i)) = equation (-28 + 49i + (-12i + 21i2)) = equation Combine like terms: 49i + -12i = 37i (-28 + 37i + 21i2) = equation Solving -28 + 37i + 21i2 = aeinoqtu Solving for variable 'i'. Reorder the terms: -28 + -1aeinoqtu + 37i + 21i2 = aeinoqtu + -1aeinoqtu Combine like terms: aeinoqtu + -1aeinoqtu = 0 -28 + -1aeinoqtu + 37i + 21i2 = 0 The solution to this equation could not be determined.
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