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Simplifying 3x2 + -19 = -3x Reorder the terms: -19 + 3x2 = -3x Solving -19 + 3x2 = -3x Solving for variable 'x'. Reorder the terms: -19 + 3x + 3x2 = -3x + 3x Combine like terms: -3x + 3x = 0 -19 + 3x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -6.333333333 + x + x2 = 0 Move the constant term to the right: Add '6.333333333' to each side of the equation. -6.333333333 + x + 6.333333333 + x2 = 0 + 6.333333333 Reorder the terms: -6.333333333 + 6.333333333 + x + x2 = 0 + 6.333333333 Combine like terms: -6.333333333 + 6.333333333 = 0.000000000 0.000000000 + x + x2 = 0 + 6.333333333 x + x2 = 0 + 6.333333333 Combine like terms: 0 + 6.333333333 = 6.333333333 x + x2 = 6.333333333 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. + 0.25 + x2 = 6.333333333 + 0.25 Combine like terms: + 0.25 = 1.25 1.25 + x2 = 6.333333333 + 0.25 Combine like terms: 6.333333333 + 0.25 = 6.583333333 1.25 + x2 = 6.583333333 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 6.583333333 Calculate the square root of the right side: 2.56580072 Break this problem into two subproblems by setting (x + 0.5) equal to 2.56580072 and -2.56580072.Subproblem 1
x + 0.5 = 2.56580072 Simplifying x + 0.5 = 2.56580072 Reorder the terms: 0.5 + x = 2.56580072 Solving 0.5 + x = 2.56580072 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.56580072 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.56580072 + -0.5 x = 2.56580072 + -0.5 Combine like terms: 2.56580072 + -0.5 = 2.06580072 x = 2.06580072 Simplifying x = 2.06580072Subproblem 2
x + 0.5 = -2.56580072 Simplifying x + 0.5 = -2.56580072 Reorder the terms: 0.5 + x = -2.56580072 Solving 0.5 + x = -2.56580072 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.56580072 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.56580072 + -0.5 x = -2.56580072 + -0.5 Combine like terms: -2.56580072 + -0.5 = -3.06580072 x = -3.06580072 Simplifying x = -3.06580072Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.06580072, -3.06580072}
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