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Simplifying 0 = x2 + 16x + -3 Reorder the terms: 0 = -3 + 16x + x2 Solving 0 = -3 + 16x + x2 Solving for variable 'x'. Combine like terms: 0 + 3 = 3 3 + -16x + -1x2 = -3 + 16x + x2 + 3 + -16x + -1x2 Reorder the terms: 3 + -16x + -1x2 = -3 + 3 + 16x + -16x + x2 + -1x2 Combine like terms: -3 + 3 = 0 3 + -16x + -1x2 = 0 + 16x + -16x + x2 + -1x2 3 + -16x + -1x2 = 16x + -16x + x2 + -1x2 Combine like terms: 16x + -16x = 0 3 + -16x + -1x2 = 0 + x2 + -1x2 3 + -16x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 3 + -16x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -3 + 16x + x2 = 0 Move the constant term to the right: Add '3' to each side of the equation. -3 + 16x + 3 + x2 = 0 + 3 Reorder the terms: -3 + 3 + 16x + x2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 16x + x2 = 0 + 3 16x + x2 = 0 + 3 Combine like terms: 0 + 3 = 3 16x + x2 = 3 The x term is 16x. Take half its coefficient (8). Square it (64) and add it to both sides. Add '64' to each side of the equation. 16x + 64 + x2 = 3 + 64 Reorder the terms: 64 + 16x + x2 = 3 + 64 Combine like terms: 3 + 64 = 67 64 + 16x + x2 = 67 Factor a perfect square on the left side: (x + 8)(x + 8) = 67 Calculate the square root of the right side: 8.185352772 Break this problem into two subproblems by setting (x + 8) equal to 8.185352772 and -8.185352772.Subproblem 1
x + 8 = 8.185352772 Simplifying x + 8 = 8.185352772 Reorder the terms: 8 + x = 8.185352772 Solving 8 + x = 8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 8.185352772 + -8 Combine like terms: 8 + -8 = 0 0 + x = 8.185352772 + -8 x = 8.185352772 + -8 Combine like terms: 8.185352772 + -8 = 0.185352772 x = 0.185352772 Simplifying x = 0.185352772Subproblem 2
x + 8 = -8.185352772 Simplifying x + 8 = -8.185352772 Reorder the terms: 8 + x = -8.185352772 Solving 8 + x = -8.185352772 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = -8.185352772 + -8 Combine like terms: 8 + -8 = 0 0 + x = -8.185352772 + -8 x = -8.185352772 + -8 Combine like terms: -8.185352772 + -8 = -16.185352772 x = -16.185352772 Simplifying x = -16.185352772Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.185352772, -16.185352772}
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