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Simplifying 3X2 + -1X2 + -1X = -1 Reorder the terms: -1X + 3X2 + -1X2 = -1 Combine like terms: 3X2 + -1X2 = 2X2 -1X + 2X2 = -1 Solving -1X + 2X2 = -1 Solving for variable 'X'. Reorder the terms: 1 + -1X + 2X2 = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -1X + 2X2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 0.5 + -0.5X + X2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -0.5X + -0.5 + X2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -0.5X + X2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -0.5X + X2 = 0 + -0.5 -0.5X + X2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -0.5X + X2 = -0.5 The X term is -0.5X. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5X + 0.0625 + X2 = -0.5 + 0.0625 Reorder the terms: 0.0625 + -0.5X + X2 = -0.5 + 0.0625 Combine like terms: -0.5 + 0.0625 = -0.4375 0.0625 + -0.5X + X2 = -0.4375 Factor a perfect square on the left side: (X + -0.25)(X + -0.25) = -0.4375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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