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Simplifying 16x2 + x + -11 = 0 Reorder the terms: -11 + x + 16x2 = 0 Solving -11 + x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. -0.6875 + 0.0625x + x2 = 0 Move the constant term to the right: Add '0.6875' to each side of the equation. -0.6875 + 0.0625x + 0.6875 + x2 = 0 + 0.6875 Reorder the terms: -0.6875 + 0.6875 + 0.0625x + x2 = 0 + 0.6875 Combine like terms: -0.6875 + 0.6875 = 0.0000 0.0000 + 0.0625x + x2 = 0 + 0.6875 0.0625x + x2 = 0 + 0.6875 Combine like terms: 0 + 0.6875 = 0.6875 0.0625x + x2 = 0.6875 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. 0.0625x + 0.25 + x2 = 0.6875 + 0.25 Reorder the terms: 0.25 + 0.0625x + x2 = 0.6875 + 0.25 Combine like terms: 0.6875 + 0.25 = 0.9375 0.25 + 0.0625x + x2 = 0.9375 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 0.9375 Calculate the square root of the right side: 0.968245837 Break this problem into two subproblems by setting (x + 0.5) equal to 0.968245837 and -0.968245837.Subproblem 1
x + 0.5 = 0.968245837 Simplifying x + 0.5 = 0.968245837 Reorder the terms: 0.5 + x = 0.968245837 Solving 0.5 + x = 0.968245837 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 = 0.968245837 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.968245837 + -0.5 x = 0.968245837 + -0.5 Combine like terms: 0.968245837 + -0.5 = 0.468245837 x = 0.468245837 Simplifying x = 0.468245837Subproblem 2
x + 0.5 = -0.968245837 Simplifying x + 0.5 = -0.968245837 Reorder the terms: 0.5 + x = -0.968245837 Solving 0.5 + x = -0.968245837 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 = -0.968245837 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.968245837 + -0.5 x = -0.968245837 + -0.5 Combine like terms: -0.968245837 + -0.5 = -1.468245837 x = -1.468245837 Simplifying x = -1.468245837Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.468245837, -1.468245837}
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