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Simplifying (x + 1)(x + 7)(x + -15) = 0 Reorder the terms: (1 + x)(x + 7)(x + -15) = 0 Reorder the terms: (1 + x)(7 + x)(x + -15) = 0 Reorder the terms: (1 + x)(7 + x)(-15 + x) = 0 Multiply (1 + x) * (7 + x) (1(7 + x) + x(7 + x))(-15 + x) = 0 ((7 * 1 + x * 1) + x(7 + x))(-15 + x) = 0 ((7 + 1x) + x(7 + x))(-15 + x) = 0 (7 + 1x + (7 * x + x * x))(-15 + x) = 0 (7 + 1x + (7x + x2))(-15 + x) = 0 Combine like terms: 1x + 7x = 8x (7 + 8x + x2)(-15 + x) = 0 Multiply (7 + 8x + x2) * (-15 + x) (7(-15 + x) + 8x * (-15 + x) + x2(-15 + x)) = 0 ((-15 * 7 + x * 7) + 8x * (-15 + x) + x2(-15 + x)) = 0 ((-105 + 7x) + 8x * (-15 + x) + x2(-15 + x)) = 0 (-105 + 7x + (-15 * 8x + x * 8x) + x2(-15 + x)) = 0 (-105 + 7x + (-120x + 8x2) + x2(-15 + x)) = 0 (-105 + 7x + -120x + 8x2 + (-15 * x2 + x * x2)) = 0 (-105 + 7x + -120x + 8x2 + (-15x2 + x3)) = 0 Combine like terms: 7x + -120x = -113x (-105 + -113x + 8x2 + -15x2 + x3) = 0 Combine like terms: 8x2 + -15x2 = -7x2 (-105 + -113x + -7x2 + x3) = 0 Solving -105 + -113x + -7x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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