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Simplifying 2x2 = -12x + 17 Reorder the terms: 2x2 = 17 + -12x Solving 2x2 = 17 + -12x Solving for variable 'x'. Reorder the terms: -17 + 12x + 2x2 = 17 + -12x + -17 + 12x Reorder the terms: -17 + 12x + 2x2 = 17 + -17 + -12x + 12x Combine like terms: 17 + -17 = 0 -17 + 12x + 2x2 = 0 + -12x + 12x -17 + 12x + 2x2 = -12x + 12x Combine like terms: -12x + 12x = 0 -17 + 12x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -8.5 + 6x + x2 = 0 Move the constant term to the right: Add '8.5' to each side of the equation. -8.5 + 6x + 8.5 + x2 = 0 + 8.5 Reorder the terms: -8.5 + 8.5 + 6x + x2 = 0 + 8.5 Combine like terms: -8.5 + 8.5 = 0.0 0.0 + 6x + x2 = 0 + 8.5 6x + x2 = 0 + 8.5 Combine like terms: 0 + 8.5 = 8.5 6x + x2 = 8.5 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 = 8.5 + 9 Reorder the terms: 9 + 6x + x2 = 8.5 + 9 Combine like terms: 8.5 + 9 = 17.5 9 + 6x + x2 = 17.5 Factor a perfect square on the left side: (x + 3)(x + 3) = 17.5 Calculate the square root of the right side: 4.183300133 Break this problem into two subproblems by setting (x + 3) equal to 4.183300133 and -4.183300133.Subproblem 1
x + 3 = 4.183300133 Simplifying x + 3 = 4.183300133 Reorder the terms: 3 + x = 4.183300133 Solving 3 + x = 4.183300133 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 = 4.183300133 + -3 Combine like terms: 3 + -3 = 0 0 + x = 4.183300133 + -3 x = 4.183300133 + -3 Combine like terms: 4.183300133 + -3 = 1.183300133 x = 1.183300133 Simplifying x = 1.183300133Subproblem 2
x + 3 = -4.183300133 Simplifying x + 3 = -4.183300133 Reorder the terms: 3 + x = -4.183300133 Solving 3 + x = -4.183300133 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 = -4.183300133 + -3 Combine like terms: 3 + -3 = 0 0 + x = -4.183300133 + -3 x = -4.183300133 + -3 Combine like terms: -4.183300133 + -3 = -7.183300133 x = -7.183300133 Simplifying x = -7.183300133Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.183300133, -7.183300133}
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