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Simplifying x2 + -0.5x + 0.0625 = 1 Reorder the terms: 0.0625 + -0.5x + x2 = 1 Solving 0.0625 + -0.5x + x2 = 1 Solving for variable 'x'. Reorder the terms: 0.0625 + -1 + -0.5x + x2 = 1 + -1 Combine like terms: 0.0625 + -1 = -0.9375 -0.9375 + -0.5x + x2 = 1 + -1 Combine like terms: 1 + -1 = 0 -0.9375 + -0.5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '0.9375' to each side of the equation. -0.9375 + -0.5x + 0.9375 + x2 = 0 + 0.9375 Reorder the terms: -0.9375 + 0.9375 + -0.5x + x2 = 0 + 0.9375 Combine like terms: -0.9375 + 0.9375 = 0.0000 0.0000 + -0.5x + x2 = 0 + 0.9375 -0.5x + x2 = 0 + 0.9375 Combine like terms: 0 + 0.9375 = 0.9375 -0.5x + x2 = 0.9375 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 = 0.9375 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = 0.9375 + 0.0625 Combine like terms: 0.9375 + 0.0625 = 1 0.0625 + -0.5x + x2 = 1 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = 1 Calculate the square root of the right side: 1 Break this problem into two subproblems by setting (x + -0.25) equal to 1 and -1.Subproblem 1
x + -0.25 = 1 Simplifying x + -0.25 = 1 Reorder the terms: -0.25 + x = 1 Solving -0.25 + x = 1 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 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 1 + 0.25 x = 1 + 0.25 Combine like terms: 1 + 0.25 = 1.25 x = 1.25 Simplifying x = 1.25Subproblem 2
x + -0.25 = -1 Simplifying x + -0.25 = -1 Reorder the terms: -0.25 + x = -1 Solving -0.25 + x = -1 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 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -1 + 0.25 x = -1 + 0.25 Combine like terms: -1 + 0.25 = -0.75 x = -0.75 Simplifying x = -0.75Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.25, -0.75}
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