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Simplifying 2x2 + x + -306 = 0 Reorder the terms: -306 + x + 2x2 = 0 Solving -306 + x + 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'. -153 + 0.5x + x2 = 0 Move the constant term to the right: Add '153' to each side of the equation. -153 + 0.5x + 153 + x2 = 0 + 153 Reorder the terms: -153 + 153 + 0.5x + x2 = 0 + 153 Combine like terms: -153 + 153 = 0 0 + 0.5x + x2 = 0 + 153 0.5x + x2 = 0 + 153 Combine like terms: 0 + 153 = 153 0.5x + x2 = 153 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.5x + 0.25 + x2 = 153 + 0.25 Reorder the terms: 0.25 + 0.5x + x2 = 153 + 0.25 Combine like terms: 153 + 0.25 = 153.25 0.25 + 0.5x + x2 = 153.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 153.25 Calculate the square root of the right side: 12.379418403 Break this problem into two subproblems by setting (x + 0.5) equal to 12.379418403 and -12.379418403.Subproblem 1
x + 0.5 = 12.379418403 Simplifying x + 0.5 = 12.379418403 Reorder the terms: 0.5 + x = 12.379418403 Solving 0.5 + x = 12.379418403 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 12.379418403 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 12.379418403 + -0.5 x = 12.379418403 + -0.5 Combine like terms: 12.379418403 + -0.5 = 11.879418403 x = 11.879418403 Simplifying x = 11.879418403Subproblem 2
x + 0.5 = -12.379418403 Simplifying x + 0.5 = -12.379418403 Reorder the terms: 0.5 + x = -12.379418403 Solving 0.5 + x = -12.379418403 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -12.379418403 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -12.379418403 + -0.5 x = -12.379418403 + -0.5 Combine like terms: -12.379418403 + -0.5 = -12.879418403 x = -12.879418403 Simplifying x = -12.879418403Solution
The solution to the problem is based on the solutions from the subproblems. x = {11.879418403, -12.879418403}
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