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Simplifying 0 = x2 + 10x + -12 Reorder the terms: 0 = -12 + 10x + x2 Solving 0 = -12 + 10x + x2 Solving for variable 'x'. Combine like terms: 0 + 12 = 12 12 + -10x + -1x2 = -12 + 10x + x2 + 12 + -10x + -1x2 Reorder the terms: 12 + -10x + -1x2 = -12 + 12 + 10x + -10x + x2 + -1x2 Combine like terms: -12 + 12 = 0 12 + -10x + -1x2 = 0 + 10x + -10x + x2 + -1x2 12 + -10x + -1x2 = 10x + -10x + x2 + -1x2 Combine like terms: 10x + -10x = 0 12 + -10x + -1x2 = 0 + x2 + -1x2 12 + -10x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 12 + -10x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -12 + 10x + x2 = 0 Move the constant term to the right: Add '12' to each side of the equation. -12 + 10x + 12 + x2 = 0 + 12 Reorder the terms: -12 + 12 + 10x + x2 = 0 + 12 Combine like terms: -12 + 12 = 0 0 + 10x + x2 = 0 + 12 10x + x2 = 0 + 12 Combine like terms: 0 + 12 = 12 10x + x2 = 12 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = 12 + 25 Reorder the terms: 25 + 10x + x2 = 12 + 25 Combine like terms: 12 + 25 = 37 25 + 10x + x2 = 37 Factor a perfect square on the left side: (x + 5)(x + 5) = 37 Calculate the square root of the right side: 6.08276253 Break this problem into two subproblems by setting (x + 5) equal to 6.08276253 and -6.08276253.Subproblem 1
x + 5 = 6.08276253 Simplifying x + 5 = 6.08276253 Reorder the terms: 5 + x = 6.08276253 Solving 5 + x = 6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 6.08276253 + -5 Combine like terms: 5 + -5 = 0 0 + x = 6.08276253 + -5 x = 6.08276253 + -5 Combine like terms: 6.08276253 + -5 = 1.08276253 x = 1.08276253 Simplifying x = 1.08276253Subproblem 2
x + 5 = -6.08276253 Simplifying x + 5 = -6.08276253 Reorder the terms: 5 + x = -6.08276253 Solving 5 + x = -6.08276253 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -6.08276253 + -5 Combine like terms: 5 + -5 = 0 0 + x = -6.08276253 + -5 x = -6.08276253 + -5 Combine like terms: -6.08276253 + -5 = -11.08276253 x = -11.08276253 Simplifying x = -11.08276253Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.08276253, -11.08276253}
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