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Simplifying (x + -1)(x + 4)(x + -7) = 0 Reorder the terms: (-1 + x)(x + 4)(x + -7) = 0 Reorder the terms: (-1 + x)(4 + x)(x + -7) = 0 Reorder the terms: (-1 + x)(4 + x)(-7 + x) = 0 Multiply (-1 + x) * (4 + x) (-1(4 + x) + x(4 + x))(-7 + x) = 0 ((4 * -1 + x * -1) + x(4 + x))(-7 + x) = 0 ((-4 + -1x) + x(4 + x))(-7 + x) = 0 (-4 + -1x + (4 * x + x * x))(-7 + x) = 0 (-4 + -1x + (4x + x2))(-7 + x) = 0 Combine like terms: -1x + 4x = 3x (-4 + 3x + x2)(-7 + x) = 0 Multiply (-4 + 3x + x2) * (-7 + x) (-4(-7 + x) + 3x * (-7 + x) + x2(-7 + x)) = 0 ((-7 * -4 + x * -4) + 3x * (-7 + x) + x2(-7 + x)) = 0 ((28 + -4x) + 3x * (-7 + x) + x2(-7 + x)) = 0 (28 + -4x + (-7 * 3x + x * 3x) + x2(-7 + x)) = 0 (28 + -4x + (-21x + 3x2) + x2(-7 + x)) = 0 (28 + -4x + -21x + 3x2 + (-7 * x2 + x * x2)) = 0 (28 + -4x + -21x + 3x2 + (-7x2 + x3)) = 0 Combine like terms: -4x + -21x = -25x (28 + -25x + 3x2 + -7x2 + x3) = 0 Combine like terms: 3x2 + -7x2 = -4x2 (28 + -25x + -4x2 + x3) = 0 Solving 28 + -25x + -4x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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