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Simplifying x2 + 22x + 22 = 0 Reorder the terms: 22 + 22x + x2 = 0 Solving 22 + 22x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-22' to each side of the equation. 22 + 22x + -22 + x2 = 0 + -22 Reorder the terms: 22 + -22 + 22x + x2 = 0 + -22 Combine like terms: 22 + -22 = 0 0 + 22x + x2 = 0 + -22 22x + x2 = 0 + -22 Combine like terms: 0 + -22 = -22 22x + x2 = -22 The x term is 22x. Take half its coefficient (11). Square it (121) and add it to both sides. Add '121' to each side of the equation. 22x + 121 + x2 = -22 + 121 Reorder the terms: 121 + 22x + x2 = -22 + 121 Combine like terms: -22 + 121 = 99 121 + 22x + x2 = 99 Factor a perfect square on the left side: (x + 11)(x + 11) = 99 Calculate the square root of the right side: 9.949874371 Break this problem into two subproblems by setting (x + 11) equal to 9.949874371 and -9.949874371.Subproblem 1
x + 11 = 9.949874371 Simplifying x + 11 = 9.949874371 Reorder the terms: 11 + x = 9.949874371 Solving 11 + x = 9.949874371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 9.949874371 + -11 Combine like terms: 11 + -11 = 0 0 + x = 9.949874371 + -11 x = 9.949874371 + -11 Combine like terms: 9.949874371 + -11 = -1.050125629 x = -1.050125629 Simplifying x = -1.050125629Subproblem 2
x + 11 = -9.949874371 Simplifying x + 11 = -9.949874371 Reorder the terms: 11 + x = -9.949874371 Solving 11 + x = -9.949874371 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = -9.949874371 + -11 Combine like terms: 11 + -11 = 0 0 + x = -9.949874371 + -11 x = -9.949874371 + -11 Combine like terms: -9.949874371 + -11 = -20.949874371 x = -20.949874371 Simplifying x = -20.949874371Solution
The solution to the problem is based on the solutions from the subproblems. x = {-1.050125629, -20.949874371}
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