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Simplifying X3 + 4x2 + 21x = 0 Reorder the terms: X3 + 21x + 4x2 = 0 Solving X3 + 21x + 4x2 = 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 + 4x2 = 0 + -21x Combine like terms: 21x + -21x = 0 X3 + 0 + 4x2 = 0 + -21x X3 + 4x2 = 0 + -21x Remove the zero: X3 + 4x2 = -21x Add '-4x2' to each side of the equation. X3 + 4x2 + -4x2 = -21x + -4x2 Combine like terms: 4x2 + -4x2 = 0 X3 + 0 = -21x + -4x2 X3 = -21x + -4x2 Simplifying X3 = -21x + -4x2 Reorder the terms: X3 + 21x + 4x2 = -21x + 21x + -4x2 + 4x2 Combine like terms: -21x + 21x = 0 X3 + 21x + 4x2 = 0 + -4x2 + 4x2 X3 + 21x + 4x2 = -4x2 + 4x2 Combine like terms: -4x2 + 4x2 = 0 X3 + 21x + 4x2 = 0 The solution to this equation could not be determined.
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