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Simplifying 6x2 + -3x + 9 = 8 Reorder the terms: 9 + -3x + 6x2 = 8 Solving 9 + -3x + 6x2 = 8 Solving for variable 'x'. Reorder the terms: 9 + -8 + -3x + 6x2 = 8 + -8 Combine like terms: 9 + -8 = 1 1 + -3x + 6x2 = 8 + -8 Combine like terms: 8 + -8 = 0 1 + -3x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. 0.1666666667 + -0.5x + x2 = 0 Move the constant term to the right: Add '-0.1666666667' to each side of the equation. 0.1666666667 + -0.5x + -0.1666666667 + x2 = 0 + -0.1666666667 Reorder the terms: 0.1666666667 + -0.1666666667 + -0.5x + x2 = 0 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + -0.5x + x2 = 0 + -0.1666666667 -0.5x + x2 = 0 + -0.1666666667 Combine like terms: 0 + -0.1666666667 = -0.1666666667 -0.5x + x2 = -0.1666666667 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 = -0.1666666667 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = -0.1666666667 + 0.0625 Combine like terms: -0.1666666667 + 0.0625 = -0.1041666667 0.0625 + -0.5x + x2 = -0.1041666667 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = -0.1041666667 Can't calculate square root of the right side. The solution to this equation could not be determined.
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