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Simplifying 9x2 + 36x + 17 = 0 Reorder the terms: 17 + 36x + 9x2 = 0 Solving 17 + 36x + 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'. 1.888888889 + 4x + x2 = 0 Move the constant term to the right: Add '-1.888888889' to each side of the equation. 1.888888889 + 4x + -1.888888889 + x2 = 0 + -1.888888889 Reorder the terms: 1.888888889 + -1.888888889 + 4x + x2 = 0 + -1.888888889 Combine like terms: 1.888888889 + -1.888888889 = 0.000000000 0.000000000 + 4x + x2 = 0 + -1.888888889 4x + x2 = 0 + -1.888888889 Combine like terms: 0 + -1.888888889 = -1.888888889 4x + x2 = -1.888888889 The x term is 4x. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4x + 4 + x2 = -1.888888889 + 4 Reorder the terms: 4 + 4x + x2 = -1.888888889 + 4 Combine like terms: -1.888888889 + 4 = 2.111111111 4 + 4x + x2 = 2.111111111 Factor a perfect square on the left side: (x + 2)(x + 2) = 2.111111111 Calculate the square root of the right side: 1.452966314 Break this problem into two subproblems by setting (x + 2) equal to 1.452966314 and -1.452966314.Subproblem 1
x + 2 = 1.452966314 Simplifying x + 2 = 1.452966314 Reorder the terms: 2 + x = 1.452966314 Solving 2 + x = 1.452966314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 1.452966314 + -2 Combine like terms: 2 + -2 = 0 0 + x = 1.452966314 + -2 x = 1.452966314 + -2 Combine like terms: 1.452966314 + -2 = -0.547033686 x = -0.547033686 Simplifying x = -0.547033686Subproblem 2
x + 2 = -1.452966314 Simplifying x + 2 = -1.452966314 Reorder the terms: 2 + x = -1.452966314 Solving 2 + x = -1.452966314 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -1.452966314 + -2 Combine like terms: 2 + -2 = 0 0 + x = -1.452966314 + -2 x = -1.452966314 + -2 Combine like terms: -1.452966314 + -2 = -3.452966314 x = -3.452966314 Simplifying x = -3.452966314Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.547033686, -3.452966314}
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