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Simplifying (3x + 7)(3x + 7)(3x + 7) = 0 Reorder the terms: (7 + 3x)(3x + 7)(3x + 7) = 0 Reorder the terms: (7 + 3x)(7 + 3x)(3x + 7) = 0 Reorder the terms: (7 + 3x)(7 + 3x)(7 + 3x) = 0 Multiply (7 + 3x) * (7 + 3x) (7(7 + 3x) + 3x * (7 + 3x))(7 + 3x) = 0 ((7 * 7 + 3x * 7) + 3x * (7 + 3x))(7 + 3x) = 0 ((49 + 21x) + 3x * (7 + 3x))(7 + 3x) = 0 (49 + 21x + (7 * 3x + 3x * 3x))(7 + 3x) = 0 (49 + 21x + (21x + 9x2))(7 + 3x) = 0 Combine like terms: 21x + 21x = 42x (49 + 42x + 9x2)(7 + 3x) = 0 Multiply (49 + 42x + 9x2) * (7 + 3x) (49(7 + 3x) + 42x * (7 + 3x) + 9x2 * (7 + 3x)) = 0 ((7 * 49 + 3x * 49) + 42x * (7 + 3x) + 9x2 * (7 + 3x)) = 0 ((343 + 147x) + 42x * (7 + 3x) + 9x2 * (7 + 3x)) = 0 (343 + 147x + (7 * 42x + 3x * 42x) + 9x2 * (7 + 3x)) = 0 (343 + 147x + (294x + 126x2) + 9x2 * (7 + 3x)) = 0 (343 + 147x + 294x + 126x2 + (7 * 9x2 + 3x * 9x2)) = 0 (343 + 147x + 294x + 126x2 + (63x2 + 27x3)) = 0 Combine like terms: 147x + 294x = 441x (343 + 441x + 126x2 + 63x2 + 27x3) = 0 Combine like terms: 126x2 + 63x2 = 189x2 (343 + 441x + 189x2 + 27x3) = 0 Solving 343 + 441x + 189x2 + 27x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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