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Simplifying 16x2 + 32x + -161 = 0 Reorder the terms: -161 + 32x + 16x2 = 0 Solving -161 + 32x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -10.0625 + 2x + x2 = 0 Move the constant term to the right: Add '10.0625' to each side of the equation. -10.0625 + 2x + 10.0625 + x2 = 0 + 10.0625 Reorder the terms: -10.0625 + 10.0625 + 2x + x2 = 0 + 10.0625 Combine like terms: -10.0625 + 10.0625 = 0.0000 0.0000 + 2x + x2 = 0 + 10.0625 2x + x2 = 0 + 10.0625 Combine like terms: 0 + 10.0625 = 10.0625 2x + x2 = 10.0625 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 = 10.0625 + 1 Reorder the terms: 1 + 2x + x2 = 10.0625 + 1 Combine like terms: 10.0625 + 1 = 11.0625 1 + 2x + x2 = 11.0625 Factor a perfect square on the left side: (x + 1)(x + 1) = 11.0625 Calculate the square root of the right side: 3.326033674 Break this problem into two subproblems by setting (x + 1) equal to 3.326033674 and -3.326033674.Subproblem 1
x + 1 = 3.326033674 Simplifying x + 1 = 3.326033674 Reorder the terms: 1 + x = 3.326033674 Solving 1 + x = 3.326033674 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 = 3.326033674 + -1 Combine like terms: 1 + -1 = 0 0 + x = 3.326033674 + -1 x = 3.326033674 + -1 Combine like terms: 3.326033674 + -1 = 2.326033674 x = 2.326033674 Simplifying x = 2.326033674Subproblem 2
x + 1 = -3.326033674 Simplifying x + 1 = -3.326033674 Reorder the terms: 1 + x = -3.326033674 Solving 1 + x = -3.326033674 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 = -3.326033674 + -1 Combine like terms: 1 + -1 = 0 0 + x = -3.326033674 + -1 x = -3.326033674 + -1 Combine like terms: -3.326033674 + -1 = -4.326033674 x = -4.326033674 Simplifying x = -4.326033674Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.326033674, -4.326033674}
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