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Simplifying x(8 + -1x) + 2 = -12 (8 * x + -1x * x) + 2 = -12 (8x + -1x2) + 2 = -12 Reorder the terms: 2 + 8x + -1x2 = -12 Solving 2 + 8x + -1x2 = -12 Solving for variable 'x'. Reorder the terms: 2 + 12 + 8x + -1x2 = -12 + 12 Combine like terms: 2 + 12 = 14 14 + 8x + -1x2 = -12 + 12 Combine like terms: -12 + 12 = 0 14 + 8x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -14 + -8x + x2 = 0 Move the constant term to the right: Add '14' to each side of the equation. -14 + -8x + 14 + x2 = 0 + 14 Reorder the terms: -14 + 14 + -8x + x2 = 0 + 14 Combine like terms: -14 + 14 = 0 0 + -8x + x2 = 0 + 14 -8x + x2 = 0 + 14 Combine like terms: 0 + 14 = 14 -8x + x2 = 14 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = 14 + 16 Reorder the terms: 16 + -8x + x2 = 14 + 16 Combine like terms: 14 + 16 = 30 16 + -8x + x2 = 30 Factor a perfect square on the left side: (x + -4)(x + -4) = 30 Calculate the square root of the right side: 5.477225575 Break this problem into two subproblems by setting (x + -4) equal to 5.477225575 and -5.477225575.Subproblem 1
x + -4 = 5.477225575 Simplifying x + -4 = 5.477225575 Reorder the terms: -4 + x = 5.477225575 Solving -4 + x = 5.477225575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 5.477225575 + 4 Combine like terms: -4 + 4 = 0 0 + x = 5.477225575 + 4 x = 5.477225575 + 4 Combine like terms: 5.477225575 + 4 = 9.477225575 x = 9.477225575 Simplifying x = 9.477225575Subproblem 2
x + -4 = -5.477225575 Simplifying x + -4 = -5.477225575 Reorder the terms: -4 + x = -5.477225575 Solving -4 + x = -5.477225575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -5.477225575 + 4 Combine like terms: -4 + 4 = 0 0 + x = -5.477225575 + 4 x = -5.477225575 + 4 Combine like terms: -5.477225575 + 4 = -1.477225575 x = -1.477225575 Simplifying x = -1.477225575Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.477225575, -1.477225575}
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