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Simplifying (x + -2)(2x2 + -1x + -21) = 0 Reorder the terms: (-2 + x)(2x2 + -1x + -21) = 0 Reorder the terms: (-2 + x)(-21 + -1x + 2x2) = 0 Multiply (-2 + x) * (-21 + -1x + 2x2) (-2(-21 + -1x + 2x2) + x(-21 + -1x + 2x2)) = 0 ((-21 * -2 + -1x * -2 + 2x2 * -2) + x(-21 + -1x + 2x2)) = 0 ((42 + 2x + -4x2) + x(-21 + -1x + 2x2)) = 0 (42 + 2x + -4x2 + (-21 * x + -1x * x + 2x2 * x)) = 0 (42 + 2x + -4x2 + (-21x + -1x2 + 2x3)) = 0 Reorder the terms: (42 + 2x + -21x + -4x2 + -1x2 + 2x3) = 0 Combine like terms: 2x + -21x = -19x (42 + -19x + -4x2 + -1x2 + 2x3) = 0 Combine like terms: -4x2 + -1x2 = -5x2 (42 + -19x + -5x2 + 2x3) = 0 Solving 42 + -19x + -5x2 + 2x3 = 0 Solving for variable 'x'. The solution to this equation could not be determined.
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