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Simplifying -1.5x2 + 3x + -127.5 = 0 Reorder the terms: -127.5 + 3x + -1.5x2 = 0 Solving -127.5 + 3x + -1.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1.5 the coefficient of the squared term: Divide each side by '-1.5'. 85 + -2x + x2 = 0 Move the constant term to the right: Add '-85' to each side of the equation. 85 + -2x + -85 + x2 = 0 + -85 Reorder the terms: 85 + -85 + -2x + x2 = 0 + -85 Combine like terms: 85 + -85 = 0 0 + -2x + x2 = 0 + -85 -2x + x2 = 0 + -85 Combine like terms: 0 + -85 = -85 -2x + x2 = -85 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = -85 + 1 Reorder the terms: 1 + -2x + x2 = -85 + 1 Combine like terms: -85 + 1 = -84 1 + -2x + x2 = -84 Factor a perfect square on the left side: (x + -1)(x + -1) = -84 Can't calculate square root of the right side. The solution to this equation could not be determined.
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