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Simplifying (x + -6)(x2 + 10x + 21) = 0 Reorder the terms: (-6 + x)(x2 + 10x + 21) = 0 Reorder the terms: (-6 + x)(21 + 10x + x2) = 0 Multiply (-6 + x) * (21 + 10x + x2) (-6(21 + 10x + x2) + x(21 + 10x + x2)) = 0 ((21 * -6 + 10x * -6 + x2 * -6) + x(21 + 10x + x2)) = 0 ((-126 + -60x + -6x2) + x(21 + 10x + x2)) = 0 (-126 + -60x + -6x2 + (21 * x + 10x * x + x2 * x)) = 0 (-126 + -60x + -6x2 + (21x + 10x2 + x3)) = 0 Reorder the terms: (-126 + -60x + 21x + -6x2 + 10x2 + x3) = 0 Combine like terms: -60x + 21x = -39x (-126 + -39x + -6x2 + 10x2 + x3) = 0 Combine like terms: -6x2 + 10x2 = 4x2 (-126 + -39x + 4x2 + x3) = 0 Solving -126 + -39x + 4x2 + x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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