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Simplifying x2 + 36x + 12 = 0 Reorder the terms: 12 + 36x + x2 = 0 Solving 12 + 36x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-12' to each side of the equation. 12 + 36x + -12 + x2 = 0 + -12 Reorder the terms: 12 + -12 + 36x + x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + 36x + x2 = 0 + -12 36x + x2 = 0 + -12 Combine like terms: 0 + -12 = -12 36x + x2 = -12 The x term is 36x. Take half its coefficient (18). Square it (324) and add it to both sides. Add '324' to each side of the equation. 36x + 324 + x2 = -12 + 324 Reorder the terms: 324 + 36x + x2 = -12 + 324 Combine like terms: -12 + 324 = 312 324 + 36x + x2 = 312 Factor a perfect square on the left side: (x + 18)(x + 18) = 312 Calculate the square root of the right side: 17.663521733 Break this problem into two subproblems by setting (x + 18) equal to 17.663521733 and -17.663521733.Subproblem 1
x + 18 = 17.663521733 Simplifying x + 18 = 17.663521733 Reorder the terms: 18 + x = 17.663521733 Solving 18 + x = 17.663521733 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + x = 17.663521733 + -18 Combine like terms: 18 + -18 = 0 0 + x = 17.663521733 + -18 x = 17.663521733 + -18 Combine like terms: 17.663521733 + -18 = -0.336478267 x = -0.336478267 Simplifying x = -0.336478267Subproblem 2
x + 18 = -17.663521733 Simplifying x + 18 = -17.663521733 Reorder the terms: 18 + x = -17.663521733 Solving 18 + x = -17.663521733 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18' to each side of the equation. 18 + -18 + x = -17.663521733 + -18 Combine like terms: 18 + -18 = 0 0 + x = -17.663521733 + -18 x = -17.663521733 + -18 Combine like terms: -17.663521733 + -18 = -35.663521733 x = -35.663521733 Simplifying x = -35.663521733Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.336478267, -35.663521733}
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