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Simplifying x2 + 10x + -51 = 0 Reorder the terms: -51 + 10x + x2 = 0 Solving -51 + 10x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '51' to each side of the equation. -51 + 10x + 51 + x2 = 0 + 51 Reorder the terms: -51 + 51 + 10x + x2 = 0 + 51 Combine like terms: -51 + 51 = 0 0 + 10x + x2 = 0 + 51 10x + x2 = 0 + 51 Combine like terms: 0 + 51 = 51 10x + x2 = 51 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 = 51 + 25 Reorder the terms: 25 + 10x + x2 = 51 + 25 Combine like terms: 51 + 25 = 76 25 + 10x + x2 = 76 Factor a perfect square on the left side: (x + 5)(x + 5) = 76 Calculate the square root of the right side: 8.717797887 Break this problem into two subproblems by setting (x + 5) equal to 8.717797887 and -8.717797887.Subproblem 1
x + 5 = 8.717797887 Simplifying x + 5 = 8.717797887 Reorder the terms: 5 + x = 8.717797887 Solving 5 + x = 8.717797887 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 = 8.717797887 + -5 Combine like terms: 5 + -5 = 0 0 + x = 8.717797887 + -5 x = 8.717797887 + -5 Combine like terms: 8.717797887 + -5 = 3.717797887 x = 3.717797887 Simplifying x = 3.717797887Subproblem 2
x + 5 = -8.717797887 Simplifying x + 5 = -8.717797887 Reorder the terms: 5 + x = -8.717797887 Solving 5 + x = -8.717797887 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 = -8.717797887 + -5 Combine like terms: 5 + -5 = 0 0 + x = -8.717797887 + -5 x = -8.717797887 + -5 Combine like terms: -8.717797887 + -5 = -13.717797887 x = -13.717797887 Simplifying x = -13.717797887Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.717797887, -13.717797887}
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