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Simplifying -6x2 + 49x + 47 = 0 Reorder the terms: 47 + 49x + -6x2 = 0 Solving 47 + 49x + -6x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -6 the coefficient of the squared term: Divide each side by '-6'. -7.833333333 + -8.166666667x + x2 = 0 Move the constant term to the right: Add '7.833333333' to each side of the equation. -7.833333333 + -8.166666667x + 7.833333333 + x2 = 0 + 7.833333333 Reorder the terms: -7.833333333 + 7.833333333 + -8.166666667x + x2 = 0 + 7.833333333 Combine like terms: -7.833333333 + 7.833333333 = 0.000000000 0.000000000 + -8.166666667x + x2 = 0 + 7.833333333 -8.166666667x + x2 = 0 + 7.833333333 Combine like terms: 0 + 7.833333333 = 7.833333333 -8.166666667x + x2 = 7.833333333 The x term is -8.166666667x. Take half its coefficient (-4.083333334). Square it (16.67361112) and add it to both sides. Add '16.67361112' to each side of the equation. -8.166666667x + 16.67361112 + x2 = 7.833333333 + 16.67361112 Reorder the terms: 16.67361112 + -8.166666667x + x2 = 7.833333333 + 16.67361112 Combine like terms: 7.833333333 + 16.67361112 = 24.506944453 16.67361112 + -8.166666667x + x2 = 24.506944453 Factor a perfect square on the left side: (x + -4.083333334)(x + -4.083333334) = 24.506944453 Calculate the square root of the right side: 4.950448914 Break this problem into two subproblems by setting (x + -4.083333334) equal to 4.950448914 and -4.950448914.Subproblem 1
x + -4.083333334 = 4.950448914 Simplifying x + -4.083333334 = 4.950448914 Reorder the terms: -4.083333334 + x = 4.950448914 Solving -4.083333334 + x = 4.950448914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.083333334' to each side of the equation. -4.083333334 + 4.083333334 + x = 4.950448914 + 4.083333334 Combine like terms: -4.083333334 + 4.083333334 = 0.000000000 0.000000000 + x = 4.950448914 + 4.083333334 x = 4.950448914 + 4.083333334 Combine like terms: 4.950448914 + 4.083333334 = 9.033782248 x = 9.033782248 Simplifying x = 9.033782248Subproblem 2
x + -4.083333334 = -4.950448914 Simplifying x + -4.083333334 = -4.950448914 Reorder the terms: -4.083333334 + x = -4.950448914 Solving -4.083333334 + x = -4.950448914 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.083333334' to each side of the equation. -4.083333334 + 4.083333334 + x = -4.950448914 + 4.083333334 Combine like terms: -4.083333334 + 4.083333334 = 0.000000000 0.000000000 + x = -4.950448914 + 4.083333334 x = -4.950448914 + 4.083333334 Combine like terms: -4.950448914 + 4.083333334 = -0.86711558 x = -0.86711558 Simplifying x = -0.86711558Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.033782248, -0.86711558}
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