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Simplifying x2 + -6x + -16 = -5x + 5 Reorder the terms: -16 + -6x + x2 = -5x + 5 Reorder the terms: -16 + -6x + x2 = 5 + -5x Solving -16 + -6x + x2 = 5 + -5x Solving for variable 'x'. Reorder the terms: -16 + -5 + -6x + 5x + x2 = 5 + -5x + -5 + 5x Combine like terms: -16 + -5 = -21 -21 + -6x + 5x + x2 = 5 + -5x + -5 + 5x Combine like terms: -6x + 5x = -1x -21 + -1x + x2 = 5 + -5x + -5 + 5x Reorder the terms: -21 + -1x + x2 = 5 + -5 + -5x + 5x Combine like terms: 5 + -5 = 0 -21 + -1x + x2 = 0 + -5x + 5x -21 + -1x + x2 = -5x + 5x Combine like terms: -5x + 5x = 0 -21 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '21' to each side of the equation. -21 + -1x + 21 + x2 = 0 + 21 Reorder the terms: -21 + 21 + -1x + x2 = 0 + 21 Combine like terms: -21 + 21 = 0 0 + -1x + x2 = 0 + 21 -1x + x2 = 0 + 21 Combine like terms: 0 + 21 = 21 -1x + x2 = 21 The x term is -1x. 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. -1x + 0.25 + x2 = 21 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 21 + 0.25 Combine like terms: 21 + 0.25 = 21.25 0.25 + -1x + x2 = 21.25 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 21.25 Calculate the square root of the right side: 4.609772229 Break this problem into two subproblems by setting (x + -0.5) equal to 4.609772229 and -4.609772229.Subproblem 1
x + -0.5 = 4.609772229 Simplifying x + -0.5 = 4.609772229 Reorder the terms: -0.5 + x = 4.609772229 Solving -0.5 + x = 4.609772229 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 + x = 4.609772229 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 4.609772229 + 0.5 x = 4.609772229 + 0.5 Combine like terms: 4.609772229 + 0.5 = 5.109772229 x = 5.109772229 Simplifying x = 5.109772229Subproblem 2
x + -0.5 = -4.609772229 Simplifying x + -0.5 = -4.609772229 Reorder the terms: -0.5 + x = -4.609772229 Solving -0.5 + x = -4.609772229 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 + x = -4.609772229 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -4.609772229 + 0.5 x = -4.609772229 + 0.5 Combine like terms: -4.609772229 + 0.5 = -4.109772229 x = -4.109772229 Simplifying x = -4.109772229Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.109772229, -4.109772229}
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