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Simplifying x2 + 12x + -208 = 0 Reorder the terms: -208 + 12x + x2 = 0 Solving -208 + 12x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '208' to each side of the equation. -208 + 12x + 208 + x2 = 0 + 208 Reorder the terms: -208 + 208 + 12x + x2 = 0 + 208 Combine like terms: -208 + 208 = 0 0 + 12x + x2 = 0 + 208 12x + x2 = 0 + 208 Combine like terms: 0 + 208 = 208 12x + x2 = 208 The x term is 12x. Take half its coefficient (6). Square it (36) and add it to both sides. Add '36' to each side of the equation. 12x + 36 + x2 = 208 + 36 Reorder the terms: 36 + 12x + x2 = 208 + 36 Combine like terms: 208 + 36 = 244 36 + 12x + x2 = 244 Factor a perfect square on the left side: (x + 6)(x + 6) = 244 Calculate the square root of the right side: 15.620499352 Break this problem into two subproblems by setting (x + 6) equal to 15.620499352 and -15.620499352.Subproblem 1
x + 6 = 15.620499352 Simplifying x + 6 = 15.620499352 Reorder the terms: 6 + x = 15.620499352 Solving 6 + x = 15.620499352 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 15.620499352 + -6 Combine like terms: 6 + -6 = 0 0 + x = 15.620499352 + -6 x = 15.620499352 + -6 Combine like terms: 15.620499352 + -6 = 9.620499352 x = 9.620499352 Simplifying x = 9.620499352Subproblem 2
x + 6 = -15.620499352 Simplifying x + 6 = -15.620499352 Reorder the terms: 6 + x = -15.620499352 Solving 6 + x = -15.620499352 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -15.620499352 + -6 Combine like terms: 6 + -6 = 0 0 + x = -15.620499352 + -6 x = -15.620499352 + -6 Combine like terms: -15.620499352 + -6 = -21.620499352 x = -21.620499352 Simplifying x = -21.620499352Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.620499352, -21.620499352}
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