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Simplifying 2x8 + 2x4 + -1 = 0 Reorder the terms: -1 + 2x4 + 2x8 = 0 Solving -1 + 2x4 + 2x8 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -0.5 + x4 + x8 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + x4 + 0.5 + x8 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + x4 + x8 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x4 + x8 = 0 + 0.5 x4 + x8 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 x4 + x8 = 0.5 The x term is x4. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x8 = 0.5 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x8 = 0.5 + 0.25 Combine like terms: 0.5 + 0.25 = 0.75 1.25 + x8 = 0.75 Factor a perfect square on the left side: (x4 + 0.5)(x4 + 0.5) = 0.75 Calculate the square root of the right side: 0.866025404 Break this problem into two subproblems by setting (x4 + 0.5) equal to 0.866025404 and -0.866025404.Subproblem 1
x4 + 0.5 = 0.866025404 Simplifying x4 + 0.5 = 0.866025404 Reorder the terms: 0.5 + x4 = 0.866025404 Solving 0.5 + x4 = 0.866025404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x4 = 0.866025404 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x4 = 0.866025404 + -0.5 x4 = 0.866025404 + -0.5 Combine like terms: 0.866025404 + -0.5 = 0.366025404 x4 = 0.366025404 Simplifying x4 = 0.366025404 Reorder the terms: -0.366025404 + x4 = 0.366025404 + -0.366025404 Combine like terms: 0.366025404 + -0.366025404 = 0.000000000 -0.366025404 + x4 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined.Subproblem 2
x4 + 0.5 = -0.866025404 Simplifying x4 + 0.5 = -0.866025404 Reorder the terms: 0.5 + x4 = -0.866025404 Solving 0.5 + x4 = -0.866025404 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x4 = -0.866025404 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x4 = -0.866025404 + -0.5 x4 = -0.866025404 + -0.5 Combine like terms: -0.866025404 + -0.5 = -1.366025404 x4 = -1.366025404 Simplifying x4 = -1.366025404 Reorder the terms: 1.366025404 + x4 = -1.366025404 + 1.366025404 Combine like terms: -1.366025404 + 1.366025404 = 0.000000000 1.366025404 + x4 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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