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Simplifying x2 + -1x + -4 = 25 Reorder the terms: -4 + -1x + x2 = 25 Solving -4 + -1x + x2 = 25 Solving for variable 'x'. Reorder the terms: -4 + -25 + -1x + x2 = 25 + -25 Combine like terms: -4 + -25 = -29 -29 + -1x + x2 = 25 + -25 Combine like terms: 25 + -25 = 0 -29 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '29' to each side of the equation. -29 + -1x + 29 + x2 = 0 + 29 Reorder the terms: -29 + 29 + -1x + x2 = 0 + 29 Combine like terms: -29 + 29 = 0 0 + -1x + x2 = 0 + 29 -1x + x2 = 0 + 29 Combine like terms: 0 + 29 = 29 -1x + x2 = 29 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 = 29 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 29 + 0.25 Combine like terms: 29 + 0.25 = 29.25 0.25 + -1x + x2 = 29.25 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 29.25 Calculate the square root of the right side: 5.408326913 Break this problem into two subproblems by setting (x + -0.5) equal to 5.408326913 and -5.408326913.Subproblem 1
x + -0.5 = 5.408326913 Simplifying x + -0.5 = 5.408326913 Reorder the terms: -0.5 + x = 5.408326913 Solving -0.5 + x = 5.408326913 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 = 5.408326913 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 5.408326913 + 0.5 x = 5.408326913 + 0.5 Combine like terms: 5.408326913 + 0.5 = 5.908326913 x = 5.908326913 Simplifying x = 5.908326913Subproblem 2
x + -0.5 = -5.408326913 Simplifying x + -0.5 = -5.408326913 Reorder the terms: -0.5 + x = -5.408326913 Solving -0.5 + x = -5.408326913 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 = -5.408326913 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -5.408326913 + 0.5 x = -5.408326913 + 0.5 Combine like terms: -5.408326913 + 0.5 = -4.908326913 x = -4.908326913 Simplifying x = -4.908326913Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.908326913, -4.908326913}
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