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Simplifying (3x + -7)(4 + -1x)(5 + x) = 0 Reorder the terms: (-7 + 3x)(4 + -1x)(5 + x) = 0 Multiply (-7 + 3x) * (4 + -1x) (-7(4 + -1x) + 3x * (4 + -1x))(5 + x) = 0 ((4 * -7 + -1x * -7) + 3x * (4 + -1x))(5 + x) = 0 ((-28 + 7x) + 3x * (4 + -1x))(5 + x) = 0 (-28 + 7x + (4 * 3x + -1x * 3x))(5 + x) = 0 (-28 + 7x + (12x + -3x2))(5 + x) = 0 Combine like terms: 7x + 12x = 19x (-28 + 19x + -3x2)(5 + x) = 0 Multiply (-28 + 19x + -3x2) * (5 + x) (-28(5 + x) + 19x * (5 + x) + -3x2 * (5 + x)) = 0 ((5 * -28 + x * -28) + 19x * (5 + x) + -3x2 * (5 + x)) = 0 ((-140 + -28x) + 19x * (5 + x) + -3x2 * (5 + x)) = 0 (-140 + -28x + (5 * 19x + x * 19x) + -3x2 * (5 + x)) = 0 (-140 + -28x + (95x + 19x2) + -3x2 * (5 + x)) = 0 (-140 + -28x + 95x + 19x2 + (5 * -3x2 + x * -3x2)) = 0 (-140 + -28x + 95x + 19x2 + (-15x2 + -3x3)) = 0 Combine like terms: -28x + 95x = 67x (-140 + 67x + 19x2 + -15x2 + -3x3) = 0 Combine like terms: 19x2 + -15x2 = 4x2 (-140 + 67x + 4x2 + -3x3) = 0 Solving -140 + 67x + 4x2 + -3x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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