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Simplifying 2x2 + 4x + -837 = 0 Reorder the terms: -837 + 4x + 2x2 = 0 Solving -837 + 4x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -418.5 + 2x + x2 = 0 Move the constant term to the right: Add '418.5' to each side of the equation. -418.5 + 2x + 418.5 + x2 = 0 + 418.5 Reorder the terms: -418.5 + 418.5 + 2x + x2 = 0 + 418.5 Combine like terms: -418.5 + 418.5 = 0.0 0.0 + 2x + x2 = 0 + 418.5 2x + x2 = 0 + 418.5 Combine like terms: 0 + 418.5 = 418.5 2x + x2 = 418.5 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 = 418.5 + 1 Reorder the terms: 1 + 2x + x2 = 418.5 + 1 Combine like terms: 418.5 + 1 = 419.5 1 + 2x + x2 = 419.5 Factor a perfect square on the left side: (x + 1)(x + 1) = 419.5 Calculate the square root of the right side: 20.481699148 Break this problem into two subproblems by setting (x + 1) equal to 20.481699148 and -20.481699148.Subproblem 1
x + 1 = 20.481699148 Simplifying x + 1 = 20.481699148 Reorder the terms: 1 + x = 20.481699148 Solving 1 + x = 20.481699148 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 = 20.481699148 + -1 Combine like terms: 1 + -1 = 0 0 + x = 20.481699148 + -1 x = 20.481699148 + -1 Combine like terms: 20.481699148 + -1 = 19.481699148 x = 19.481699148 Simplifying x = 19.481699148Subproblem 2
x + 1 = -20.481699148 Simplifying x + 1 = -20.481699148 Reorder the terms: 1 + x = -20.481699148 Solving 1 + x = -20.481699148 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 = -20.481699148 + -1 Combine like terms: 1 + -1 = 0 0 + x = -20.481699148 + -1 x = -20.481699148 + -1 Combine like terms: -20.481699148 + -1 = -21.481699148 x = -21.481699148 Simplifying x = -21.481699148Solution
The solution to the problem is based on the solutions from the subproblems. x = {19.481699148, -21.481699148}
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