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Simplifying X2 + 9X2 + 20 = 0 Reorder the terms: 20 + X2 + 9X2 = 0 Combine like terms: X2 + 9X2 = 10X2 20 + 10X2 = 0 Solving 20 + 10X2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + 10X2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + 10X2 = 0 + -20 10X2 = 0 + -20 Combine like terms: 0 + -20 = -20 10X2 = -20 Divide each side by '10'. X2 = -2 Simplifying X2 = -2 Reorder the terms: 2 + X2 = -2 + 2 Combine like terms: -2 + 2 = 0 2 + X2 = 0 The solution to this equation could not be determined.
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