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Simplifying 6x + -9 + -1x2 = 3 Reorder the terms: -9 + 6x + -1x2 = 3 Solving -9 + 6x + -1x2 = 3 Solving for variable 'x'. Reorder the terms: -9 + -3 + 6x + -1x2 = 3 + -3 Combine like terms: -9 + -3 = -12 -12 + 6x + -1x2 = 3 + -3 Combine like terms: 3 + -3 = 0 -12 + 6x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 12 + -6x + x2 = 0 Move the constant term to the right: Add '-12' to each side of the equation. 12 + -6x + -12 + x2 = 0 + -12 Reorder the terms: 12 + -12 + -6x + x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -6x + x2 = 0 + -12 -6x + x2 = 0 + -12 Combine like terms: 0 + -12 = -12 -6x + x2 = -12 The x term is -6x. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x + 9 + x2 = -12 + 9 Reorder the terms: 9 + -6x + x2 = -12 + 9 Combine like terms: -12 + 9 = -3 9 + -6x + x2 = -3 Factor a perfect square on the left side: (x + -3)(x + -3) = -3 Can't calculate square root of the right side. The solution to this equation could not be determined.
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