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Simplifying 2x2 + 22x + -39 = 0 Reorder the terms: -39 + 22x + 2x2 = 0 Solving -39 + 22x + 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'. -19.5 + 11x + x2 = 0 Move the constant term to the right: Add '19.5' to each side of the equation. -19.5 + 11x + 19.5 + x2 = 0 + 19.5 Reorder the terms: -19.5 + 19.5 + 11x + x2 = 0 + 19.5 Combine like terms: -19.5 + 19.5 = 0.0 0.0 + 11x + x2 = 0 + 19.5 11x + x2 = 0 + 19.5 Combine like terms: 0 + 19.5 = 19.5 11x + x2 = 19.5 The x term is 11x. Take half its coefficient (5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. 11x + 30.25 + x2 = 19.5 + 30.25 Reorder the terms: 30.25 + 11x + x2 = 19.5 + 30.25 Combine like terms: 19.5 + 30.25 = 49.75 30.25 + 11x + x2 = 49.75 Factor a perfect square on the left side: (x + 5.5)(x + 5.5) = 49.75 Calculate the square root of the right side: 7.05336799 Break this problem into two subproblems by setting (x + 5.5) equal to 7.05336799 and -7.05336799.Subproblem 1
x + 5.5 = 7.05336799 Simplifying x + 5.5 = 7.05336799 Reorder the terms: 5.5 + x = 7.05336799 Solving 5.5 + x = 7.05336799 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = 7.05336799 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = 7.05336799 + -5.5 x = 7.05336799 + -5.5 Combine like terms: 7.05336799 + -5.5 = 1.55336799 x = 1.55336799 Simplifying x = 1.55336799Subproblem 2
x + 5.5 = -7.05336799 Simplifying x + 5.5 = -7.05336799 Reorder the terms: 5.5 + x = -7.05336799 Solving 5.5 + x = -7.05336799 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5.5' to each side of the equation. 5.5 + -5.5 + x = -7.05336799 + -5.5 Combine like terms: 5.5 + -5.5 = 0.0 0.0 + x = -7.05336799 + -5.5 x = -7.05336799 + -5.5 Combine like terms: -7.05336799 + -5.5 = -12.55336799 x = -12.55336799 Simplifying x = -12.55336799Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.55336799, -12.55336799}
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