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Simplifying x2 + -3x + 1.18 = 0 Reorder the terms: 1.18 + -3x + x2 = 0 Solving 1.18 + -3x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-1.18' to each side of the equation. 1.18 + -3x + -1.18 + x2 = 0 + -1.18 Reorder the terms: 1.18 + -1.18 + -3x + x2 = 0 + -1.18 Combine like terms: 1.18 + -1.18 = 0.00 0.00 + -3x + x2 = 0 + -1.18 -3x + x2 = 0 + -1.18 Combine like terms: 0 + -1.18 = -1.18 -3x + x2 = -1.18 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -1.18 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -1.18 + 2.25 Combine like terms: -1.18 + 2.25 = 1.07 2.25 + -3x + x2 = 1.07 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 1.07 Calculate the square root of the right side: 1.034408043 Break this problem into two subproblems by setting (x + -1.5) equal to 1.034408043 and -1.034408043.Subproblem 1
x + -1.5 = 1.034408043 Simplifying x + -1.5 = 1.034408043 Reorder the terms: -1.5 + x = 1.034408043 Solving -1.5 + x = 1.034408043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.034408043 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.034408043 + 1.5 x = 1.034408043 + 1.5 Combine like terms: 1.034408043 + 1.5 = 2.534408043 x = 2.534408043 Simplifying x = 2.534408043Subproblem 2
x + -1.5 = -1.034408043 Simplifying x + -1.5 = -1.034408043 Reorder the terms: -1.5 + x = -1.034408043 Solving -1.5 + x = -1.034408043 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.034408043 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.034408043 + 1.5 x = -1.034408043 + 1.5 Combine like terms: -1.034408043 + 1.5 = 0.465591957 x = 0.465591957 Simplifying x = 0.465591957Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.534408043, 0.465591957}
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