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Simplifying x2 + 2x + -677 = 0 Reorder the terms: -677 + 2x + x2 = 0 Solving -677 + 2x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '677' to each side of the equation. -677 + 2x + 677 + x2 = 0 + 677 Reorder the terms: -677 + 677 + 2x + x2 = 0 + 677 Combine like terms: -677 + 677 = 0 0 + 2x + x2 = 0 + 677 2x + x2 = 0 + 677 Combine like terms: 0 + 677 = 677 2x + x2 = 677 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 = 677 + 1 Reorder the terms: 1 + 2x + x2 = 677 + 1 Combine like terms: 677 + 1 = 678 1 + 2x + x2 = 678 Factor a perfect square on the left side: (x + 1)(x + 1) = 678 Calculate the square root of the right side: 26.038433133 Break this problem into two subproblems by setting (x + 1) equal to 26.038433133 and -26.038433133.Subproblem 1
x + 1 = 26.038433133 Simplifying x + 1 = 26.038433133 Reorder the terms: 1 + x = 26.038433133 Solving 1 + x = 26.038433133 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 = 26.038433133 + -1 Combine like terms: 1 + -1 = 0 0 + x = 26.038433133 + -1 x = 26.038433133 + -1 Combine like terms: 26.038433133 + -1 = 25.038433133 x = 25.038433133 Simplifying x = 25.038433133Subproblem 2
x + 1 = -26.038433133 Simplifying x + 1 = -26.038433133 Reorder the terms: 1 + x = -26.038433133 Solving 1 + x = -26.038433133 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 = -26.038433133 + -1 Combine like terms: 1 + -1 = 0 0 + x = -26.038433133 + -1 x = -26.038433133 + -1 Combine like terms: -26.038433133 + -1 = -27.038433133 x = -27.038433133 Simplifying x = -27.038433133Solution
The solution to the problem is based on the solutions from the subproblems. x = {25.038433133, -27.038433133}
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