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Simplifying -1x2 + 2x + 0.25 = 3 Reorder the terms: 0.25 + 2x + -1x2 = 3 Solving 0.25 + 2x + -1x2 = 3 Solving for variable 'x'. Reorder the terms: 0.25 + -3 + 2x + -1x2 = 3 + -3 Combine like terms: 0.25 + -3 = -2.75 -2.75 + 2x + -1x2 = 3 + -3 Combine like terms: 3 + -3 = 0 -2.75 + 2x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 2.75 + -2x + x2 = 0 Move the constant term to the right: Add '-2.75' to each side of the equation. 2.75 + -2x + -2.75 + x2 = 0 + -2.75 Reorder the terms: 2.75 + -2.75 + -2x + x2 = 0 + -2.75 Combine like terms: 2.75 + -2.75 = 0.00 0.00 + -2x + x2 = 0 + -2.75 -2x + x2 = 0 + -2.75 Combine like terms: 0 + -2.75 = -2.75 -2x + x2 = -2.75 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 = -2.75 + 1 Reorder the terms: 1 + -2x + x2 = -2.75 + 1 Combine like terms: -2.75 + 1 = -1.75 1 + -2x + x2 = -1.75 Factor a perfect square on the left side: (x + -1)(x + -1) = -1.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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