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Simplifying (2x) * 2x = x(x + -14) + -5 Remove parenthesis around (2x) 2x * 2x = x(x + -14) + -5 Reorder the terms for easier multiplication: 2 * 2x * x = x(x + -14) + -5 Multiply 2 * 2 4x * x = x(x + -14) + -5 Multiply x * x 4x2 = x(x + -14) + -5 Reorder the terms: 4x2 = x(-14 + x) + -5 4x2 = (-14 * x + x * x) + -5 4x2 = (-14x + x2) + -5 Reorder the terms: 4x2 = -5 + -14x + x2 Solving 4x2 = -5 + -14x + x2 Solving for variable 'x'. Reorder the terms: 5 + 14x + 4x2 + -1x2 = -5 + -14x + x2 + 5 + 14x + -1x2 Combine like terms: 4x2 + -1x2 = 3x2 5 + 14x + 3x2 = -5 + -14x + x2 + 5 + 14x + -1x2 Reorder the terms: 5 + 14x + 3x2 = -5 + 5 + -14x + 14x + x2 + -1x2 Combine like terms: -5 + 5 = 0 5 + 14x + 3x2 = 0 + -14x + 14x + x2 + -1x2 5 + 14x + 3x2 = -14x + 14x + x2 + -1x2 Combine like terms: -14x + 14x = 0 5 + 14x + 3x2 = 0 + x2 + -1x2 5 + 14x + 3x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 5 + 14x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 1.666666667 + 4.666666667x + x2 = 0 Move the constant term to the right: Add '-1.666666667' to each side of the equation. 1.666666667 + 4.666666667x + -1.666666667 + x2 = 0 + -1.666666667 Reorder the terms: 1.666666667 + -1.666666667 + 4.666666667x + x2 = 0 + -1.666666667 Combine like terms: 1.666666667 + -1.666666667 = 0.000000000 0.000000000 + 4.666666667x + x2 = 0 + -1.666666667 4.666666667x + x2 = 0 + -1.666666667 Combine like terms: 0 + -1.666666667 = -1.666666667 4.666666667x + x2 = -1.666666667 The x term is 4.666666667x. Take half its coefficient (2.333333334). Square it (5.444444448) and add it to both sides. Add '5.444444448' to each side of the equation. 4.666666667x + 5.444444448 + x2 = -1.666666667 + 5.444444448 Reorder the terms: 5.444444448 + 4.666666667x + x2 = -1.666666667 + 5.444444448 Combine like terms: -1.666666667 + 5.444444448 = 3.777777781 5.444444448 + 4.666666667x + x2 = 3.777777781 Factor a perfect square on the left side: (x + 2.333333334)(x + 2.333333334) = 3.777777781 Calculate the square root of the right side: 1.943650632 Break this problem into two subproblems by setting (x + 2.333333334) equal to 1.943650632 and -1.943650632.Subproblem 1
x + 2.333333334 = 1.943650632 Simplifying x + 2.333333334 = 1.943650632 Reorder the terms: 2.333333334 + x = 1.943650632 Solving 2.333333334 + x = 1.943650632 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.333333334' to each side of the equation. 2.333333334 + -2.333333334 + x = 1.943650632 + -2.333333334 Combine like terms: 2.333333334 + -2.333333334 = 0.000000000 0.000000000 + x = 1.943650632 + -2.333333334 x = 1.943650632 + -2.333333334 Combine like terms: 1.943650632 + -2.333333334 = -0.389682702 x = -0.389682702 Simplifying x = -0.389682702Subproblem 2
x + 2.333333334 = -1.943650632 Simplifying x + 2.333333334 = -1.943650632 Reorder the terms: 2.333333334 + x = -1.943650632 Solving 2.333333334 + x = -1.943650632 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.333333334' to each side of the equation. 2.333333334 + -2.333333334 + x = -1.943650632 + -2.333333334 Combine like terms: 2.333333334 + -2.333333334 = 0.000000000 0.000000000 + x = -1.943650632 + -2.333333334 x = -1.943650632 + -2.333333334 Combine like terms: -1.943650632 + -2.333333334 = -4.276983966 x = -4.276983966 Simplifying x = -4.276983966Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.389682702, -4.276983966}
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