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Simplifying -3 = -6x2 + -8x Reorder the terms: -3 = -8x + -6x2 Solving -3 = -8x + -6x2 Solving for variable 'x'. Reorder the terms: -3 + 8x + 6x2 = -8x + 8x + -6x2 + 6x2 Combine like terms: -8x + 8x = 0 -3 + 8x + 6x2 = 0 + -6x2 + 6x2 -3 + 8x + 6x2 = -6x2 + 6x2 Combine like terms: -6x2 + 6x2 = 0 -3 + 8x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -0.5 + 1.333333333x + x2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + 1.333333333x + 0.5 + x2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + 1.333333333x + x2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + 1.333333333x + x2 = 0 + 0.5 1.333333333x + x2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 1.333333333x + x2 = 0.5 The x term is 1.333333333x. Take half its coefficient (0.6666666665). Square it (0.4444444442) and add it to both sides. Add '0.4444444442' to each side of the equation. 1.333333333x + 0.4444444442 + x2 = 0.5 + 0.4444444442 Reorder the terms: 0.4444444442 + 1.333333333x + x2 = 0.5 + 0.4444444442 Combine like terms: 0.5 + 0.4444444442 = 0.9444444442 0.4444444442 + 1.333333333x + x2 = 0.9444444442 Factor a perfect square on the left side: (x + 0.6666666665)(x + 0.6666666665) = 0.9444444442 Calculate the square root of the right side: 0.971825316 Break this problem into two subproblems by setting (x + 0.6666666665) equal to 0.971825316 and -0.971825316.Subproblem 1
x + 0.6666666665 = 0.971825316 Simplifying x + 0.6666666665 = 0.971825316 Reorder the terms: 0.6666666665 + x = 0.971825316 Solving 0.6666666665 + x = 0.971825316 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = 0.971825316 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = 0.971825316 + -0.6666666665 x = 0.971825316 + -0.6666666665 Combine like terms: 0.971825316 + -0.6666666665 = 0.3051586495 x = 0.3051586495 Simplifying x = 0.3051586495Subproblem 2
x + 0.6666666665 = -0.971825316 Simplifying x + 0.6666666665 = -0.971825316 Reorder the terms: 0.6666666665 + x = -0.971825316 Solving 0.6666666665 + x = -0.971825316 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.6666666665' to each side of the equation. 0.6666666665 + -0.6666666665 + x = -0.971825316 + -0.6666666665 Combine like terms: 0.6666666665 + -0.6666666665 = 0.0000000000 0.0000000000 + x = -0.971825316 + -0.6666666665 x = -0.971825316 + -0.6666666665 Combine like terms: -0.971825316 + -0.6666666665 = -1.6384919825 x = -1.6384919825 Simplifying x = -1.6384919825Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.3051586495, -1.6384919825}
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