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Simplifying -1 = -2x2 + x + 3 Reorder the terms: -1 = 3 + x + -2x2 Solving -1 = 3 + x + -2x2 Solving for variable 'x'. Combine like terms: -1 + -3 = -4 -4 + -1x + 2x2 = 3 + x + -2x2 + -3 + -1x + 2x2 Reorder the terms: -4 + -1x + 2x2 = 3 + -3 + x + -1x + -2x2 + 2x2 Combine like terms: 3 + -3 = 0 -4 + -1x + 2x2 = 0 + x + -1x + -2x2 + 2x2 -4 + -1x + 2x2 = x + -1x + -2x2 + 2x2 Combine like terms: x + -1x = 0 -4 + -1x + 2x2 = 0 + -2x2 + 2x2 -4 + -1x + 2x2 = -2x2 + 2x2 Combine like terms: -2x2 + 2x2 = 0 -4 + -1x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2 + -0.5x + x2 = 0 Move the constant term to the right: Add '2' to each side of the equation. -2 + -0.5x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + -0.5x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -0.5x + x2 = 0 + 2 -0.5x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 -0.5x + x2 = 2 The x term is -0.5x. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5x + 0.0625 + x2 = 2 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = 2 + 0.0625 Combine like terms: 2 + 0.0625 = 2.0625 0.0625 + -0.5x + x2 = 2.0625 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = 2.0625 Calculate the square root of the right side: 1.436140662 Break this problem into two subproblems by setting (x + -0.25) equal to 1.436140662 and -1.436140662.Subproblem 1
x + -0.25 = 1.436140662 Simplifying x + -0.25 = 1.436140662 Reorder the terms: -0.25 + x = 1.436140662 Solving -0.25 + x = 1.436140662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 1.436140662 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 1.436140662 + 0.25 x = 1.436140662 + 0.25 Combine like terms: 1.436140662 + 0.25 = 1.686140662 x = 1.686140662 Simplifying x = 1.686140662Subproblem 2
x + -0.25 = -1.436140662 Simplifying x + -0.25 = -1.436140662 Reorder the terms: -0.25 + x = -1.436140662 Solving -0.25 + x = -1.436140662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -1.436140662 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -1.436140662 + 0.25 x = -1.436140662 + 0.25 Combine like terms: -1.436140662 + 0.25 = -1.186140662 x = -1.186140662 Simplifying x = -1.186140662Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.686140662, -1.186140662}
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