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Simplifying 9x2 = 17 + -6x Solving 9x2 = 17 + -6x Solving for variable 'x'. Reorder the terms: -17 + 6x + 9x2 = 17 + -6x + -17 + 6x Reorder the terms: -17 + 6x + 9x2 = 17 + -17 + -6x + 6x Combine like terms: 17 + -17 = 0 -17 + 6x + 9x2 = 0 + -6x + 6x -17 + 6x + 9x2 = -6x + 6x Combine like terms: -6x + 6x = 0 -17 + 6x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -1.888888889 + 0.6666666667x + x2 = 0 Move the constant term to the right: Add '1.888888889' to each side of the equation. -1.888888889 + 0.6666666667x + 1.888888889 + x2 = 0 + 1.888888889 Reorder the terms: -1.888888889 + 1.888888889 + 0.6666666667x + x2 = 0 + 1.888888889 Combine like terms: -1.888888889 + 1.888888889 = 0.000000000 0.000000000 + 0.6666666667x + x2 = 0 + 1.888888889 0.6666666667x + x2 = 0 + 1.888888889 Combine like terms: 0 + 1.888888889 = 1.888888889 0.6666666667x + x2 = 1.888888889 The x term is 0.6666666667x. Take half its coefficient (0.3333333334). Square it (0.1111111112) and add it to both sides. Add '0.1111111112' to each side of the equation. 0.6666666667x + 0.1111111112 + x2 = 1.888888889 + 0.1111111112 Reorder the terms: 0.1111111112 + 0.6666666667x + x2 = 1.888888889 + 0.1111111112 Combine like terms: 1.888888889 + 0.1111111112 = 2.0000000002 0.1111111112 + 0.6666666667x + x2 = 2.0000000002 Factor a perfect square on the left side: (x + 0.3333333334)(x + 0.3333333334) = 2.0000000002 Calculate the square root of the right side: 1.414213562 Break this problem into two subproblems by setting (x + 0.3333333334) equal to 1.414213562 and -1.414213562.Subproblem 1
x + 0.3333333334 = 1.414213562 Simplifying x + 0.3333333334 = 1.414213562 Reorder the terms: 0.3333333334 + x = 1.414213562 Solving 0.3333333334 + x = 1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + x = 1.414213562 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = 1.414213562 + -0.3333333334 x = 1.414213562 + -0.3333333334 Combine like terms: 1.414213562 + -0.3333333334 = 1.0808802286 x = 1.0808802286 Simplifying x = 1.0808802286Subproblem 2
x + 0.3333333334 = -1.414213562 Simplifying x + 0.3333333334 = -1.414213562 Reorder the terms: 0.3333333334 + x = -1.414213562 Solving 0.3333333334 + x = -1.414213562 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.3333333334' to each side of the equation. 0.3333333334 + -0.3333333334 + x = -1.414213562 + -0.3333333334 Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000 0.0000000000 + x = -1.414213562 + -0.3333333334 x = -1.414213562 + -0.3333333334 Combine like terms: -1.414213562 + -0.3333333334 = -1.7475468954 x = -1.7475468954 Simplifying x = -1.7475468954Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.0808802286, -1.7475468954}
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