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Simplifying X3 + -2x2 + -21x = 0 Reorder the terms: X3 + -21x + -2x2 = 0 Solving X3 + -21x + -2x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '21x' to each side of the equation. X3 + -21x + 21x + -2x2 = 0 + 21x Combine like terms: -21x + 21x = 0 X3 + 0 + -2x2 = 0 + 21x X3 + -2x2 = 0 + 21x Remove the zero: X3 + -2x2 = 21x Add '2x2' to each side of the equation. X3 + -2x2 + 2x2 = 21x + 2x2 Combine like terms: -2x2 + 2x2 = 0 X3 + 0 = 21x + 2x2 X3 = 21x + 2x2 Simplifying X3 = 21x + 2x2 Reorder the terms: X3 + -21x + -2x2 = 21x + -21x + 2x2 + -2x2 Combine like terms: 21x + -21x = 0 X3 + -21x + -2x2 = 0 + 2x2 + -2x2 X3 + -21x + -2x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 X3 + -21x + -2x2 = 0 The solution to this equation could not be determined.
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