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Simplifying 9x2 + 54x + 14 = 0 Reorder the terms: 14 + 54x + 9x2 = 0 Solving 14 + 54x + 9x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 1.555555556 + 6x + x2 = 0 Move the constant term to the right: Add '-1.555555556' to each side of the equation. 1.555555556 + 6x + -1.555555556 + x2 = 0 + -1.555555556 Reorder the terms: 1.555555556 + -1.555555556 + 6x + x2 = 0 + -1.555555556 Combine like terms: 1.555555556 + -1.555555556 = 0.000000000 0.000000000 + 6x + x2 = 0 + -1.555555556 6x + x2 = 0 + -1.555555556 Combine like terms: 0 + -1.555555556 = -1.555555556 6x + x2 = -1.555555556 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = -1.555555556 + 9 Reorder the terms: 9 + 6x + x2 = -1.555555556 + 9 Combine like terms: -1.555555556 + 9 = 7.444444444 9 + 6x + x2 = 7.444444444 Factor a perfect square on the left side: (x + 3)(x + 3) = 7.444444444 Calculate the square root of the right side: 2.728450924 Break this problem into two subproblems by setting (x + 3) equal to 2.728450924 and -2.728450924.Subproblem 1
x + 3 = 2.728450924 Simplifying x + 3 = 2.728450924 Reorder the terms: 3 + x = 2.728450924 Solving 3 + x = 2.728450924 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 2.728450924 + -3 Combine like terms: 3 + -3 = 0 0 + x = 2.728450924 + -3 x = 2.728450924 + -3 Combine like terms: 2.728450924 + -3 = -0.271549076 x = -0.271549076 Simplifying x = -0.271549076Subproblem 2
x + 3 = -2.728450924 Simplifying x + 3 = -2.728450924 Reorder the terms: 3 + x = -2.728450924 Solving 3 + x = -2.728450924 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -2.728450924 + -3 Combine like terms: 3 + -3 = 0 0 + x = -2.728450924 + -3 x = -2.728450924 + -3 Combine like terms: -2.728450924 + -3 = -5.728450924 x = -5.728450924 Simplifying x = -5.728450924Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.271549076, -5.728450924}
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