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Simplifying X3 + -6x2 + -21x + -18 = 0 Reorder the terms: -18 + X3 + -21x + -6x2 = 0 Solving -18 + X3 + -21x + -6x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '18' to each side of the equation. -18 + X3 + -21x + 18 + -6x2 = 0 + 18 Reorder the terms: -18 + 18 + X3 + -21x + -6x2 = 0 + 18 Combine like terms: -18 + 18 = 0 0 + X3 + -21x + -6x2 = 0 + 18 X3 + -21x + -6x2 = 0 + 18 Combine like terms: 0 + 18 = 18 X3 + -21x + -6x2 = 18 Add '21x' to each side of the equation. X3 + -21x + 21x + -6x2 = 18 + 21x Combine like terms: -21x + 21x = 0 X3 + 0 + -6x2 = 18 + 21x X3 + -6x2 = 18 + 21x Add '6x2' to each side of the equation. X3 + -6x2 + 6x2 = 18 + 21x + 6x2 Combine like terms: -6x2 + 6x2 = 0 X3 + 0 = 18 + 21x + 6x2 X3 = 18 + 21x + 6x2 Simplifying X3 = 18 + 21x + 6x2 Reorder the terms: -18 + X3 + -21x + -6x2 = 18 + 21x + 6x2 + -18 + -21x + -6x2 Reorder the terms: -18 + X3 + -21x + -6x2 = 18 + -18 + 21x + -21x + 6x2 + -6x2 Combine like terms: 18 + -18 = 0 -18 + X3 + -21x + -6x2 = 0 + 21x + -21x + 6x2 + -6x2 -18 + X3 + -21x + -6x2 = 21x + -21x + 6x2 + -6x2 Combine like terms: 21x + -21x = 0 -18 + X3 + -21x + -6x2 = 0 + 6x2 + -6x2 -18 + X3 + -21x + -6x2 = 6x2 + -6x2 Combine like terms: 6x2 + -6x2 = 0 -18 + X3 + -21x + -6x2 = 0 The solution to this equation could not be determined.
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