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Simplifying 16x2 + 40x + 1 = 0 Reorder the terms: 1 + 40x + 16x2 = 0 Solving 1 + 40x + 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'. 0.0625 + 2.5x + x2 = 0 Move the constant term to the right: Add '-0.0625' to each side of the equation. 0.0625 + 2.5x + -0.0625 + x2 = 0 + -0.0625 Reorder the terms: 0.0625 + -0.0625 + 2.5x + x2 = 0 + -0.0625 Combine like terms: 0.0625 + -0.0625 = 0.0000 0.0000 + 2.5x + x2 = 0 + -0.0625 2.5x + x2 = 0 + -0.0625 Combine like terms: 0 + -0.0625 = -0.0625 2.5x + x2 = -0.0625 The x term is 2.5x. Take half its coefficient (1.25). Square it (1.5625) and add it to both sides. Add '1.5625' to each side of the equation. 2.5x + 1.5625 + x2 = -0.0625 + 1.5625 Reorder the terms: 1.5625 + 2.5x + x2 = -0.0625 + 1.5625 Combine like terms: -0.0625 + 1.5625 = 1.5 1.5625 + 2.5x + x2 = 1.5 Factor a perfect square on the left side: (x + 1.25)(x + 1.25) = 1.5 Calculate the square root of the right side: 1.224744871 Break this problem into two subproblems by setting (x + 1.25) equal to 1.224744871 and -1.224744871.Subproblem 1
x + 1.25 = 1.224744871 Simplifying x + 1.25 = 1.224744871 Reorder the terms: 1.25 + x = 1.224744871 Solving 1.25 + x = 1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 1.224744871 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 1.224744871 + -1.25 x = 1.224744871 + -1.25 Combine like terms: 1.224744871 + -1.25 = -0.025255129 x = -0.025255129 Simplifying x = -0.025255129Subproblem 2
x + 1.25 = -1.224744871 Simplifying x + 1.25 = -1.224744871 Reorder the terms: 1.25 + x = -1.224744871 Solving 1.25 + x = -1.224744871 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -1.224744871 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -1.224744871 + -1.25 x = -1.224744871 + -1.25 Combine like terms: -1.224744871 + -1.25 = -2.474744871 x = -2.474744871 Simplifying x = -2.474744871Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.025255129, -2.474744871}
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