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Simplifying X2 + -3.9x + 4 = 0 Reorder the terms: 4 + X2 + -3.9x = 0 Solving 4 + X2 + -3.9x = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + X2 + -4 + -3.9x = 0 + -4 Reorder the terms: 4 + -4 + X2 + -3.9x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + X2 + -3.9x = 0 + -4 X2 + -3.9x = 0 + -4 Combine like terms: 0 + -4 = -4 X2 + -3.9x = -4 Add '3.9x' to each side of the equation. X2 + -3.9x + 3.9x = -4 + 3.9x Combine like terms: -3.9x + 3.9x = 0.0 X2 + 0.0 = -4 + 3.9x X2 = -4 + 3.9x Simplifying X2 = -4 + 3.9x Reorder the terms: 4 + X2 + -3.9x = -4 + 3.9x + 4 + -3.9x Reorder the terms: 4 + X2 + -3.9x = -4 + 4 + 3.9x + -3.9x Combine like terms: -4 + 4 = 0 4 + X2 + -3.9x = 0 + 3.9x + -3.9x 4 + X2 + -3.9x = 3.9x + -3.9x Combine like terms: 3.9x + -3.9x = 0.0 4 + X2 + -3.9x = 0.0 The solution to this equation could not be determined.
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