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Simplifying (2x + 1)(x + -4)(x + 7) = 0 Reorder the terms: (1 + 2x)(x + -4)(x + 7) = 0 Reorder the terms: (1 + 2x)(-4 + x)(x + 7) = 0 Reorder the terms: (1 + 2x)(-4 + x)(7 + x) = 0 Multiply (1 + 2x) * (-4 + x) (1(-4 + x) + 2x * (-4 + x))(7 + x) = 0 ((-4 * 1 + x * 1) + 2x * (-4 + x))(7 + x) = 0 ((-4 + 1x) + 2x * (-4 + x))(7 + x) = 0 (-4 + 1x + (-4 * 2x + x * 2x))(7 + x) = 0 (-4 + 1x + (-8x + 2x2))(7 + x) = 0 Combine like terms: 1x + -8x = -7x (-4 + -7x + 2x2)(7 + x) = 0 Multiply (-4 + -7x + 2x2) * (7 + x) (-4(7 + x) + -7x * (7 + x) + 2x2 * (7 + x)) = 0 ((7 * -4 + x * -4) + -7x * (7 + x) + 2x2 * (7 + x)) = 0 ((-28 + -4x) + -7x * (7 + x) + 2x2 * (7 + x)) = 0 (-28 + -4x + (7 * -7x + x * -7x) + 2x2 * (7 + x)) = 0 (-28 + -4x + (-49x + -7x2) + 2x2 * (7 + x)) = 0 (-28 + -4x + -49x + -7x2 + (7 * 2x2 + x * 2x2)) = 0 (-28 + -4x + -49x + -7x2 + (14x2 + 2x3)) = 0 Combine like terms: -4x + -49x = -53x (-28 + -53x + -7x2 + 14x2 + 2x3) = 0 Combine like terms: -7x2 + 14x2 = 7x2 (-28 + -53x + 7x2 + 2x3) = 0 Solving -28 + -53x + 7x2 + 2x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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