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Simplifying x2 + -14x + 5.666666667 = 0 Reorder the terms: 5.666666667 + -14x + x2 = 0 Solving 5.666666667 + -14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-5.666666667' to each side of the equation. 5.666666667 + -14x + -5.666666667 + x2 = 0 + -5.666666667 Reorder the terms: 5.666666667 + -5.666666667 + -14x + x2 = 0 + -5.666666667 Combine like terms: 5.666666667 + -5.666666667 = 0.000000000 0.000000000 + -14x + x2 = 0 + -5.666666667 -14x + x2 = 0 + -5.666666667 Combine like terms: 0 + -5.666666667 = -5.666666667 -14x + x2 = -5.666666667 The x term is -14x. Take half its coefficient (-7). Square it (49) and add it to both sides. Add '49' to each side of the equation. -14x + 49 + x2 = -5.666666667 + 49 Reorder the terms: 49 + -14x + x2 = -5.666666667 + 49 Combine like terms: -5.666666667 + 49 = 43.333333333 49 + -14x + x2 = 43.333333333 Factor a perfect square on the left side: (x + -7)(x + -7) = 43.333333333 Calculate the square root of the right side: 6.582805886 Break this problem into two subproblems by setting (x + -7) equal to 6.582805886 and -6.582805886.Subproblem 1
x + -7 = 6.582805886 Simplifying x + -7 = 6.582805886 Reorder the terms: -7 + x = 6.582805886 Solving -7 + x = 6.582805886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = 6.582805886 + 7 Combine like terms: -7 + 7 = 0 0 + x = 6.582805886 + 7 x = 6.582805886 + 7 Combine like terms: 6.582805886 + 7 = 13.582805886 x = 13.582805886 Simplifying x = 13.582805886Subproblem 2
x + -7 = -6.582805886 Simplifying x + -7 = -6.582805886 Reorder the terms: -7 + x = -6.582805886 Solving -7 + x = -6.582805886 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x = -6.582805886 + 7 Combine like terms: -7 + 7 = 0 0 + x = -6.582805886 + 7 x = -6.582805886 + 7 Combine like terms: -6.582805886 + 7 = 0.417194114 x = 0.417194114 Simplifying x = 0.417194114Solution
The solution to the problem is based on the solutions from the subproblems. x = {13.582805886, 0.417194114}
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