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Simplifying -1x2 + -12x + 14 = 0 Reorder the terms: 14 + -12x + -1x2 = 0 Solving 14 + -12x + -1x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -14 + 12x + x2 = 0 Move the constant term to the right: Add '14' to each side of the equation. -14 + 12x + 14 + x2 = 0 + 14 Reorder the terms: -14 + 14 + 12x + x2 = 0 + 14 Combine like terms: -14 + 14 = 0 0 + 12x + x2 = 0 + 14 12x + x2 = 0 + 14 Combine like terms: 0 + 14 = 14 12x + x2 = 14 The x term is 12x. Take half its coefficient (6). Square it (36) and add it to both sides. Add '36' to each side of the equation. 12x + 36 + x2 = 14 + 36 Reorder the terms: 36 + 12x + x2 = 14 + 36 Combine like terms: 14 + 36 = 50 36 + 12x + x2 = 50 Factor a perfect square on the left side: (x + 6)(x + 6) = 50 Calculate the square root of the right side: 7.071067812 Break this problem into two subproblems by setting (x + 6) equal to 7.071067812 and -7.071067812.Subproblem 1
x + 6 = 7.071067812 Simplifying x + 6 = 7.071067812 Reorder the terms: 6 + x = 7.071067812 Solving 6 + x = 7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 7.071067812 + -6 Combine like terms: 6 + -6 = 0 0 + x = 7.071067812 + -6 x = 7.071067812 + -6 Combine like terms: 7.071067812 + -6 = 1.071067812 x = 1.071067812 Simplifying x = 1.071067812Subproblem 2
x + 6 = -7.071067812 Simplifying x + 6 = -7.071067812 Reorder the terms: 6 + x = -7.071067812 Solving 6 + x = -7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -7.071067812 + -6 Combine like terms: 6 + -6 = 0 0 + x = -7.071067812 + -6 x = -7.071067812 + -6 Combine like terms: -7.071067812 + -6 = -13.071067812 x = -13.071067812 Simplifying x = -13.071067812Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.071067812, -13.071067812}
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