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Simplifying 0.5x2 + -1x + -12 = 0 Reorder the terms: -12 + -1x + 0.5x2 = 0 Solving -12 + -1x + 0.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.5 the coefficient of the squared term: Divide each side by '0.5'. -24 + -2x + x2 = 0 Move the constant term to the right: Add '24' to each side of the equation. -24 + -2x + 24 + x2 = 0 + 24 Reorder the terms: -24 + 24 + -2x + x2 = 0 + 24 Combine like terms: -24 + 24 = 0 0 + -2x + x2 = 0 + 24 -2x + x2 = 0 + 24 Combine like terms: 0 + 24 = 24 -2x + x2 = 24 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 = 24 + 1 Reorder the terms: 1 + -2x + x2 = 24 + 1 Combine like terms: 24 + 1 = 25 1 + -2x + x2 = 25 Factor a perfect square on the left side: (x + -1)(x + -1) = 25 Calculate the square root of the right side: 5 Break this problem into two subproblems by setting (x + -1) equal to 5 and -5.Subproblem 1
x + -1 = 5 Simplifying x + -1 = 5 Reorder the terms: -1 + x = 5 Solving -1 + x = 5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 5 + 1 Combine like terms: -1 + 1 = 0 0 + x = 5 + 1 x = 5 + 1 Combine like terms: 5 + 1 = 6 x = 6 Simplifying x = 6Subproblem 2
x + -1 = -5 Simplifying x + -1 = -5 Reorder the terms: -1 + x = -5 Solving -1 + x = -5 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -5 + 1 Combine like terms: -1 + 1 = 0 0 + x = -5 + 1 x = -5 + 1 Combine like terms: -5 + 1 = -4 x = -4 Simplifying x = -4Solution
The solution to the problem is based on the solutions from the subproblems. x = {6, -4}
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