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Simplifying (x + 1)(x + -3)(x + 7) = 0 Reorder the terms: (1 + x)(x + -3)(x + 7) = 0 Reorder the terms: (1 + x)(-3 + x)(x + 7) = 0 Reorder the terms: (1 + x)(-3 + x)(7 + x) = 0 Multiply (1 + x) * (-3 + x) (1(-3 + x) + x(-3 + x))(7 + x) = 0 ((-3 * 1 + x * 1) + x(-3 + x))(7 + x) = 0 ((-3 + 1x) + x(-3 + x))(7 + x) = 0 (-3 + 1x + (-3 * x + x * x))(7 + x) = 0 (-3 + 1x + (-3x + x2))(7 + x) = 0 Combine like terms: 1x + -3x = -2x (-3 + -2x + x2)(7 + x) = 0 Multiply (-3 + -2x + x2) * (7 + x) (-3(7 + x) + -2x * (7 + x) + x2(7 + x)) = 0 ((7 * -3 + x * -3) + -2x * (7 + x) + x2(7 + x)) = 0 ((-21 + -3x) + -2x * (7 + x) + x2(7 + x)) = 0 (-21 + -3x + (7 * -2x + x * -2x) + x2(7 + x)) = 0 (-21 + -3x + (-14x + -2x2) + x2(7 + x)) = 0 (-21 + -3x + -14x + -2x2 + (7 * x2 + x * x2)) = 0 (-21 + -3x + -14x + -2x2 + (7x2 + x3)) = 0 Combine like terms: -3x + -14x = -17x (-21 + -17x + -2x2 + 7x2 + x3) = 0 Combine like terms: -2x2 + 7x2 = 5x2 (-21 + -17x + 5x2 + x3) = 0 Solving -21 + -17x + 5x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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