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Simplifying (x2 + 2x + 1) + -1(3x2 + -6x + 2) = 0 Reorder the terms: (1 + 2x + x2) + -1(3x2 + -6x + 2) = 0 Remove parenthesis around (1 + 2x + x2) 1 + 2x + x2 + -1(3x2 + -6x + 2) = 0 Reorder the terms: 1 + 2x + x2 + -1(2 + -6x + 3x2) = 0 1 + 2x + x2 + (2 * -1 + -6x * -1 + 3x2 * -1) = 0 1 + 2x + x2 + (-2 + 6x + -3x2) = 0 Reorder the terms: 1 + -2 + 2x + 6x + x2 + -3x2 = 0 Combine like terms: 1 + -2 = -1 -1 + 2x + 6x + x2 + -3x2 = 0 Combine like terms: 2x + 6x = 8x -1 + 8x + x2 + -3x2 = 0 Combine like terms: x2 + -3x2 = -2x2 -1 + 8x + -2x2 = 0 Solving -1 + 8x + -2x2 = 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 + -4x + x2 = 0 Move the constant term to the right: Add '-0.5' to each side of the equation. 0.5 + -4x + -0.5 + x2 = 0 + -0.5 Reorder the terms: 0.5 + -0.5 + -4x + x2 = 0 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + -4x + x2 = 0 + -0.5 -4x + x2 = 0 + -0.5 Combine like terms: 0 + -0.5 = -0.5 -4x + x2 = -0.5 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = -0.5 + 4 Reorder the terms: 4 + -4x + x2 = -0.5 + 4 Combine like terms: -0.5 + 4 = 3.5 4 + -4x + x2 = 3.5 Factor a perfect square on the left side: (x + -2)(x + -2) = 3.5 Calculate the square root of the right side: 1.870828693 Break this problem into two subproblems by setting (x + -2) equal to 1.870828693 and -1.870828693.Subproblem 1
x + -2 = 1.870828693 Simplifying x + -2 = 1.870828693 Reorder the terms: -2 + x = 1.870828693 Solving -2 + x = 1.870828693 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1.870828693 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.870828693 + 2 x = 1.870828693 + 2 Combine like terms: 1.870828693 + 2 = 3.870828693 x = 3.870828693 Simplifying x = 3.870828693Subproblem 2
x + -2 = -1.870828693 Simplifying x + -2 = -1.870828693 Reorder the terms: -2 + x = -1.870828693 Solving -2 + x = -1.870828693 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1.870828693 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.870828693 + 2 x = -1.870828693 + 2 Combine like terms: -1.870828693 + 2 = 0.129171307 x = 0.129171307 Simplifying x = 0.129171307Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.870828693, 0.129171307}
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